QUICHE: Remove Net. prefix from client histograms

Chromium's implementation of the client histogram macros automatically adds "Net." to the beginning of every histogram, so it should not be included explicitly.

Remove the "Net." prefix from some new histograms.

No functional change in google3, as the client histograms are a no-op there.

PiperOrigin-RevId: 796528489

quiche/quic/core/http/quic_connection_migration_manager.cc

diff --git a/quiche/quic/core/http/quic_connection_migration_manager.cc b/quiche/quic/core/http/quic_connection_migration_manager.cc
index 34b3c54..45a61ba 100644
--- a/quiche/quic/core/http/quic_connection_migration_manager.cc
+++ b/quiche/quic/core/http/quic_connection_migration_manager.cc
@@ -272,7 +272,7 @@
     // TODO(b/430345640): remove the if condition if the historgram is not hit
     // at all in production.
     QUIC_CLIENT_HISTOGRAM_BOOL(
-        "Net.QuicSession.MigratingToInvalidNetwork", true,
+        "QuicSession.MigratingToInvalidNetwork", true,
         "Connection is migrating with an invalid network handle.");
   }
   QUIC_DVLOG(1) << "Force blocking the current packet writer";
@@ -430,7 +430,7 @@
   if (current_migration_cause_ ==
       MigrationCause::CHANGE_PORT_ON_PATH_DEGRADING) {
     QUIC_CLIENT_HISTOGRAM_ENUM(
-        "Net.QuicSession.PortMigration", status,
+        "QuicSession.PortMigration", status,
         QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
     current_migration_cause_ = MigrationCause::UNKNOWN_CAUSE;
     return;
@@ -438,55 +438,55 @@
   if (current_migration_cause_ ==
       MigrationCause::ON_SERVER_PREFERRED_ADDRESS_AVAILABLE) {
     QUIC_CLIENT_HISTOGRAM_ENUM(
-        "Net.QuicSession.OnServerPreferredAddressAvailable", status,
+        "QuicSession.OnServerPreferredAddressAvailable", status,
         QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
     current_migration_cause_ = MigrationCause::UNKNOWN_CAUSE;
     return;
   }
   QUIC_CLIENT_HISTOGRAM_ENUM(
-      "Net.QuicSession.ConnectionMigration", status,
+      "QuicSession.ConnectionMigration", status,
       QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
   // Log the connection migraiton result to different histograms based on the
   // cause of the connection migration.
   switch (current_migration_cause_) {
     case MigrationCause::UNKNOWN_CAUSE:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.Unknown", status,
+          "QuicSession.ConnectionMigration.Unknown", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::ON_NETWORK_CONNECTED:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnNetworkConnected", status,
+          "QuicSession.ConnectionMigration.OnNetworkConnected", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::ON_NETWORK_DISCONNECTED:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnNetworkDisconnected", status,
+          "QuicSession.ConnectionMigration.OnNetworkDisconnected", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::ON_WRITE_ERROR:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnWriteError", status,
+          "QuicSession.ConnectionMigration.OnWriteError", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::ON_NETWORK_MADE_DEFAULT:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnNetworkMadeDefault", status,
+          "QuicSession.ConnectionMigration.OnNetworkMadeDefault", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::ON_MIGRATE_BACK_TO_DEFAULT_NETWORK:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnMigrateBackToDefaultNetwork",
+          "QuicSession.ConnectionMigration.OnMigrateBackToDefaultNetwork",
           status, QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::CHANGE_NETWORK_ON_PATH_DEGRADING:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration.OnPathDegrading", status,
+          "QuicSession.ConnectionMigration.OnPathDegrading", status,
           QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
     case MigrationCause::NEW_NETWORK_CONNECTED_POST_PATH_DEGRADING:
       QUIC_CLIENT_HISTOGRAM_ENUM(
-          "Net.QuicSession.ConnectionMigration."
+          "QuicSession.ConnectionMigration."
           "NewNetworkConnectedPostPathDegrading",
           status, QuicConnectionMigrationStatus::MIGRATION_STATUS_MAX, "");
       break;
@@ -503,64 +503,63 @@
   const bool handshake_confirmed = session_->OneRttKeysAvailable();
   if (current_migration_cause_ ==
       MigrationCause::CHANGE_PORT_ON_PATH_DEGRADING) {
-    QUIC_CLIENT_HISTOGRAM_BOOL("Net.QuicSession.HandshakeStatusOnPortMigration",
+    QUIC_CLIENT_HISTOGRAM_BOOL("QuicSession.HandshakeStatusOnPortMigration",
                                handshake_confirmed, "");
     return;
   }
   if (current_migration_cause_ ==
       MigrationCause::ON_SERVER_PREFERRED_ADDRESS_AVAILABLE) {
     QUIC_CLIENT_HISTOGRAM_BOOL(
-        "Net.QuicSession.HandshakeStatusOnMigratingToServerPreferredAddress",
+        "QuicSession.HandshakeStatusOnMigratingToServerPreferredAddress",
         handshake_confirmed, "");
     return;
   }
-  QUIC_CLIENT_HISTOGRAM_BOOL(
-      "Net.QuicSession.HandshakeStatusOnConnectionMigration",
-      handshake_confirmed, "");
+  QUIC_CLIENT_HISTOGRAM_BOOL("QuicSession.HandshakeStatusOnConnectionMigration",
+                             handshake_confirmed, "");
   switch (current_migration_cause_) {
     case MigrationCause::UNKNOWN_CAUSE:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration.Unknown",
+          "QuicSession.HandshakeStatusOnConnectionMigration.Unknown",
           handshake_confirmed, "");
       break;
     case MigrationCause::ON_NETWORK_CONNECTED:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "OnNetworkConnected",
           handshake_confirmed, "");
       break;
     case MigrationCause::ON_NETWORK_DISCONNECTED:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "OnNetworkDisconnected",
           handshake_confirmed, "");
       break;
     case MigrationCause::ON_WRITE_ERROR:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration.OnWriteError",
+          "QuicSession.HandshakeStatusOnConnectionMigration.OnWriteError",
           handshake_confirmed, "");
       break;
     case MigrationCause::ON_NETWORK_MADE_DEFAULT:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "OnNetworkMadeDefault",
           handshake_confirmed, "");
       break;
     case MigrationCause::ON_MIGRATE_BACK_TO_DEFAULT_NETWORK:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "OnMigrateBackToDefaultNetwork",
           handshake_confirmed, "");
       break;
     case MigrationCause::CHANGE_NETWORK_ON_PATH_DEGRADING:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "OnPathDegrading",
           handshake_confirmed, "");
       break;
     case MigrationCause::NEW_NETWORK_CONNECTED_POST_PATH_DEGRADING:
       QUIC_CLIENT_HISTOGRAM_BOOL(
-          "Net.QuicSession.HandshakeStatusOnConnectionMigration."
+          "QuicSession.HandshakeStatusOnConnectionMigration."
           "NewNetworkConnectedPostPathDegrading",
           handshake_confirmed, "");
       break;

quiche/quic/core/http/quic_spdy_client_session_with_migration.cc

diff --git a/quiche/quic/core/http/quic_spdy_client_session_with_migration.cc b/quiche/quic/core/http/quic_spdy_client_session_with_migration.cc
index 4796961..287d9a4 100644
--- a/quiche/quic/core/http/quic_spdy_client_session_with_migration.cc
+++ b/quiche/quic/core/http/quic_spdy_client_session_with_migration.cc
@@ -38,8 +38,8 @@
 bool QuicSpdyClientSessionWithMigration::MigrateToNewPath(
     std::unique_ptr<QuicPathValidationContext> path_context) {
   if (!PrepareForMigrationToPath(*path_context)) {
-    QUIC_CLIENT_HISTOGRAM_BOOL("Net.QuicSession.PrepareForMigrationToPath",
-                               false, "");
+    QUIC_CLIENT_HISTOGRAM_BOOL("QuicSession.PrepareForMigrationToPath", false,
+                               "");
     return false;
   }
   const bool success = MigratePath(