Removing GL context rate limiting feature and related wrappers

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 987 matching lines @@
       webEvents.push_back(blink::WebFrameTimingEvent(
           events[i].frame_id,
           (events[i].timestamp - base::TimeTicks()).InSecondsF(),
           (events[i].end_time - base::TimeTicks()).InSecondsF()));
     }
     widget_->webwidget()->recordFrameTimingEvent(
         blink::WebWidget::RenderEvent, frameId, webEvents);
   }
 }
 
-void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
-  cc::ContextProvider* provider =
-      compositor_deps_->GetSharedMainThreadContextProvider();
-  // provider can be NULL after the GPU process crashed enough times and we
-  // don't want to restart it any more (falling back to software).
-  if (!provider)
-    return;
-  provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
-}
-
 void RenderWidgetCompositor::SetSurfaceIdNamespace(
     uint32_t surface_id_namespace) {
   layer_tree_host_->set_surface_id_namespace(surface_id_namespace);
 }
 
 }  // namespace content