Add tracing for GL texture objects

cc/resources/shared_bitmap.cc

Index: cc/resources/shared_bitmap.cc
diff --git a/cc/resources/shared_bitmap.cc b/cc/resources/shared_bitmap.cc
index 1ac03233dfb94e02750573723fa1aeb325db2f8d..fc15736315b756f438ebd8bc3cb4afbba17458c8 100644
--- a/cc/resources/shared_bitmap.cc
+++ b/cc/resources/shared_bitmap.cc
@@ -7,6 +7,8 @@
 #include "base/logging.h"
 #include "base/numerics/safe_math.h"
 #include "base/rand_util.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
 
 namespace cc {
 
@@ -66,4 +68,11 @@ SharedBitmapId SharedBitmap::GenerateId() {
   return id;
 }
 
+base::trace_event::MemoryAllocatorDumpGuid GetSharedBitmapGUIDForTracing(
+    const SharedBitmapId& bitmap_id) {
+  auto bitmap_id_hex = base::HexEncode(bitmap_id.name, sizeof(bitmap_id.name));
+  return base::trace_event::MemoryAllocatorDumpGuid(
+      base::StringPrintf("sharedbitmap-x-process/%s", bitmap_id_hex.c_str()));
+}
+
 }  // namespace cc