cc: Add compositor name for easier GPU debugging.

cc/output/gl_renderer.cc

 // Copyright 2010 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 "cc/output/gl_renderer.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 #include <string>
@@ skipping 128 matching lines @@
       highp_threshold_min_(highp_threshold_min),
       highp_threshold_cache_(0),
       on_demand_tile_raster_resource_id_(0) {
   DCHECK(context_);
 }
 
 bool GLRenderer::Initialize() {
   if (!context_->makeContextCurrent())
     return false;
 
-  context_->pushGroupMarkerEXT("CompositorContext");
+  context_->pushGroupMarkerEXT(Settings().compositor_name.c_str());
 
   std::string extensions_string =
       UTF16ToASCII(context_->getString(GL_EXTENSIONS));
   std::vector<std::string> extensions_list;
   base::SplitString(extensions_string, ' ', &extensions_list);
   std::set<std::string> extensions(extensions_list.begin(),
                                    extensions_list.end());
 
   if (Settings().accelerate_painting &&
       extensions.count("GL_EXT_texture_format_BGRA8888") &&
@@ skipping 2751 matching lines @@
   // The Skia GPU backend requires a stencil buffer.  See ReinitializeGrCanvas
   // implementation.
   return gr_context_ && context_->getContextAttributes().stencil;
 }
 
 bool GLRenderer::IsContextLost() {
   return (context_->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc