Track managed memory usage in the command buffer.

gpu/command_buffer/service/renderbuffer_manager.cc

Index: gpu/command_buffer/service/renderbuffer_manager.cc
diff --git a/gpu/command_buffer/service/renderbuffer_manager.cc b/gpu/command_buffer/service/renderbuffer_manager.cc
index 496b746c9c2733b8672a35b5e3740333b8707dc8..810b3334d164afecbc69d04d89cd7ed1cf4968c1 100644
--- a/gpu/command_buffer/service/renderbuffer_manager.cc
+++ b/gpu/command_buffer/service/renderbuffer_manager.cc
@@ -17,14 +17,14 @@ RenderbufferManager::RenderbufferManager(
     MemoryTracker* memory_tracker,
     GLint max_renderbuffer_size,
     GLint max_samples)
-    : renderbuffer_memory_tracker_(new MemoryTypeTracker(memory_tracker)),
+    : memory_tracker_(
+          new MemoryTypeTracker(memory_tracker, MemoryTracker::Unmanaged)),
       max_renderbuffer_size_(max_renderbuffer_size),
       max_samples_(max_samples),
       num_uncleared_renderbuffers_(0),
-      mem_represented_(0),
       renderbuffer_info_count_(0),
       have_context_(true) {
-  UpdateMemRepresented();
+  memory_tracker_->UpdateMemRepresented();
 }
 
 RenderbufferManager::~RenderbufferManager() {
@@ -60,16 +60,11 @@ RenderbufferManager::RenderbufferInfo::~RenderbufferInfo() {
   }
 }
 
-
-void RenderbufferManager::UpdateMemRepresented() {
-  renderbuffer_memory_tracker_->UpdateMemRepresented(mem_represented_);
-}
-
 void RenderbufferManager::Destroy(bool have_context) {
   have_context_ = have_context;
   renderbuffer_infos_.clear();
-  DCHECK_EQ(0u, mem_represented_);
-  UpdateMemRepresented();
+  DCHECK_EQ(0u, memory_tracker_->GetMemRepresented());
+  memory_tracker_->UpdateMemRepresented();
 }
 
 void RenderbufferManager::StartTracking(RenderbufferInfo* /* renderbuffer */) {
@@ -81,7 +76,8 @@ void RenderbufferManager::StopTracking(RenderbufferInfo* renderbuffer) {
   if (!renderbuffer->cleared()) {
     --num_uncleared_renderbuffers_;
   }
-  mem_represented_ -= renderbuffer->EstimatedSize();
+  memory_tracker_->TrackMemFree(renderbuffer->EstimatedSize());
+  memory_tracker_->UpdateMemRepresented();
 }
 
 void RenderbufferManager::SetInfo(
@@ -91,10 +87,10 @@ void RenderbufferManager::SetInfo(
   if (!renderbuffer->cleared()) {
     --num_uncleared_renderbuffers_;
   }
-  mem_represented_ -= renderbuffer->EstimatedSize();
+  memory_tracker_->TrackMemFree(renderbuffer->EstimatedSize());
   renderbuffer->SetInfo(samples, internalformat, width, height);
-  mem_represented_ += renderbuffer->EstimatedSize();
-  UpdateMemRepresented();
+  memory_tracker_->TrackMemAlloc(renderbuffer->EstimatedSize());
+  memory_tracker_->UpdateMemRepresented();
   if (!renderbuffer->cleared()) {
     ++num_uncleared_renderbuffers_;
   }