Use IsStreamError() and friends gMock matchers in quic/core (but not subdirectories).

gfe-relnote: n/a, test-only change.
PiperOrigin-RevId: 282792467
Change-Id: I827d913c14334b493b46977a827d44e72143fa4e
diff --git a/quic/core/quic_framer_test.cc b/quic/core/quic_framer_test.cc
index 2d158fb..9dc6fde 100644
--- a/quic/core/quic_framer_test.cc
+++ b/quic/core/quic_framer_test.cc
@@ -5312,7 +5312,7 @@
 
   QuicEncryptedPacket encrypted(AsChars(packet), QUIC_ARRAYSIZE(packet), false);
   EXPECT_FALSE(framer_.ProcessPacket(encrypted));
-  ASSERT_EQ(QUIC_INVALID_PUBLIC_RST_PACKET, framer_.error());
+  ASSERT_THAT(framer_.error(), IsError(QUIC_INVALID_PUBLIC_RST_PACKET));
   EXPECT_EQ("Unable to read reset message.", framer_.detailed_error());
 }
 
@@ -11146,7 +11146,7 @@
 
   EXPECT_FALSE(framer_.ProcessPacket(*encrypted));
 
-  EXPECT_EQ(IETF_QUIC_PROTOCOL_VIOLATION, framer_.error());
+  EXPECT_THAT(framer_.error(), IsError(IETF_QUIC_PROTOCOL_VIOLATION));
   EXPECT_EQ("Frame type not minimally encoded.", framer_.detailed_error());
 }
 
@@ -11179,7 +11179,7 @@
 
   EXPECT_FALSE(framer_.ProcessPacket(*encrypted));
 
-  EXPECT_EQ(IETF_QUIC_PROTOCOL_VIOLATION, framer_.error());
+  EXPECT_THAT(framer_.error(), IsError(IETF_QUIC_PROTOCOL_VIOLATION));
   EXPECT_EQ("Frame type not minimally encoded.", framer_.detailed_error());
 }
 
@@ -11211,7 +11211,7 @@
 
   EXPECT_FALSE(framer_.ProcessPacket(*encrypted));
 
-  EXPECT_EQ(IETF_QUIC_PROTOCOL_VIOLATION, framer_.error());
+  EXPECT_THAT(framer_.error(), IsError(IETF_QUIC_PROTOCOL_VIOLATION));
   EXPECT_EQ("Frame type not minimally encoded.", framer_.detailed_error());
 }
 
@@ -11615,7 +11615,7 @@
 
     EXPECT_FALSE(framer_.ProcessPacket(*encrypted));
 
-    EXPECT_EQ(IETF_QUIC_PROTOCOL_VIOLATION, framer_.error());
+    EXPECT_THAT(framer_.error(), IsError(IETF_QUIC_PROTOCOL_VIOLATION));
     EXPECT_EQ("Frame type not minimally encoded.", framer_.detailed_error());
   }
 }