Remove Http2StringPiece; use QuicheStringPiece instead.

gfe-relnote: n/a, no functional change.
PiperOrigin-RevId: 285412823
Change-Id: I907a65813e890ce153b93fe5f07721efb3ecc195
diff --git a/http2/tools/http2_frame_builder.cc b/http2/tools/http2_frame_builder.cc
index 1dfcdeb..1f1af16 100644
--- a/http2/tools/http2_frame_builder.cc
+++ b/http2/tools/http2_frame_builder.cc
@@ -30,12 +30,12 @@
   Append(v);
 }
 
-void Http2FrameBuilder::Append(Http2StringPiece s) {
+void Http2FrameBuilder::Append(quiche::QuicheStringPiece s) {
   Http2StrAppend(&buffer_, s);
 }
 
 void Http2FrameBuilder::AppendBytes(const void* data, uint32_t num_bytes) {
-  Append(Http2StringPiece(static_cast<const char*>(data), num_bytes));
+  Append(quiche::QuicheStringPiece(static_cast<const char*>(data), num_bytes));
 }
 
 void Http2FrameBuilder::AppendZeroes(size_t num_zero_bytes) {
@@ -143,7 +143,7 @@
 
 // Methods for changing existing buffer contents.
 
-void Http2FrameBuilder::WriteAt(Http2StringPiece s, size_t offset) {
+void Http2FrameBuilder::WriteAt(quiche::QuicheStringPiece s, size_t offset) {
   ASSERT_LE(offset, buffer_.size());
   size_t len = offset + s.size();
   if (len > buffer_.size()) {
@@ -157,7 +157,8 @@
 void Http2FrameBuilder::WriteBytesAt(const void* data,
                                      uint32_t num_bytes,
                                      size_t offset) {
-  WriteAt(Http2StringPiece(static_cast<const char*>(data), num_bytes), offset);
+  WriteAt(quiche::QuicheStringPiece(static_cast<const char*>(data), num_bytes),
+          offset);
 }
 
 void Http2FrameBuilder::WriteUInt24At(uint32_t value, size_t offset) {