Add tracing of all memory allocated in all contexts

gpu/command_buffer/service/buffer_manager.cc

Index: gpu/command_buffer/service/buffer_manager.cc
diff --git a/gpu/command_buffer/service/buffer_manager.cc b/gpu/command_buffer/service/buffer_manager.cc
index 864027dce48c38c395d63e2515069d09824ea45f..1fbf6b32ef4d78472ee87497adeeaa0041c09a1c 100644
--- a/gpu/command_buffer/service/buffer_manager.cc
+++ b/gpu/command_buffer/service/buffer_manager.cc
@@ -7,14 +7,18 @@
 #include "base/logging.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
+#include "gpu/command_buffer/service/memory_tracking.h"
 
 namespace gpu {
 namespace gles2 {
 
-BufferManager::BufferManager()
-    : allow_buffers_on_multiple_targets_(false),
+BufferManager::BufferManager(MemoryTracker* memory_tracker)
+    : buffer_memory_tracker_(new MemoryTypeTracker(
+        memory_tracker,
+        "BufferManager",
+        "BufferMemory")),
+      allow_buffers_on_multiple_targets_(false),
       mem_represented_(0),
-      last_reported_mem_represented_(1),
       buffer_info_count_(0),
       have_context_(true) {
   UpdateMemRepresented();
@@ -33,11 +37,7 @@ void BufferManager::Destroy(bool have_context) {
 }
 
 void BufferManager::UpdateMemRepresented() {
-  if (mem_represented_ != last_reported_mem_represented_) {
-    last_reported_mem_represented_ = mem_represented_;
-    TRACE_COUNTER_ID1(
-        "BufferManager", "BufferMemory", this, mem_represented_);
-  }
+  buffer_memory_tracker_->UpdateMemRepresented(mem_represented_);
 }
 
 void BufferManager::CreateBufferInfo(GLuint client_id, GLuint service_id) {