Added GL_CHROMIUM_trace_marker feature as well as gpu_toplevel markers.

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/build_info.h"
 #include "base/basictypes.h"
@@ skipping 117 matching lines @@
   GLHelperHolder* holder = new GLHelperHolder;
   holder->Initialize();
 
   return holder;
 }
 
 GLHelperHolder::GLHelperHolder() {
 }
 
 GLHelperHolder::~GLHelperHolder() {
+  if (context_) {
+    context_->traceEndCHROMIUM();

[David Yen, 2014/12/18 21:26:00]

Should this one be removed as well?

[vmiura, 2014/12/18 21:49:39]

Yeah, let's remove this one as well.

[David Yen, 2014/12/18 21:54:27]

Done.

+  }
 }
 
 void GLHelperHolder::Initialize() {
   context_ = CreateContext3D();
   if (context_) {
     context_->setContextLostCallback(this);
     gl_helper_.reset(new GLHelper(context_->GetImplementation(),
                                   context_->GetContextSupport()));
   }
 }
@@ skipping 36 matching lines @@
       3 * full_screen_texture_size_in_bytes, kDefaultMaxTransferBufferSize);
   limits.mapped_memory_reclaim_limit =
       WebGraphicsContext3DCommandBufferImpl::kNoLimit;
   bool lose_context_when_out_of_memory = false;
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
       new WebGraphicsContext3DCommandBufferImpl(
           0,  // offscreen
           url, gpu_channel_host.get(), attrs, lose_context_when_out_of_memory,
           limits, nullptr));
   if (context->InitializeOnCurrentThread()) {
-    context->pushGroupMarkerEXT(
+    context->traceBeginCHROMIUM(
+        "gpu_toplevel",
         base::StringPrintf("CmdBufferImageTransportFactory-%p",
                            context.get()).c_str());
   } else {
     context.reset();
   }
 
   return context.Pass();
 }
 
 // This can only be used for readback postprocessing. It may return null if the
@@ skipping 1696 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content