Removing GL context rate limiting feature and related wrappers

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 484 matching lines @@
     for (const auto& quad : pass->quad_list) {
       for (ResourceId resource_id : quad->resources)
         resource_provider->WaitSyncPointIfNeeded(resource_id);
     }
   }
 
   // TODO(enne): Do we need to reinitialize all of this state per frame?
   ReinitializeGLState();
 }
 
-void GLRenderer::DoNoOp() {
-  gl_->BindFramebuffer(GL_FRAMEBUFFER, 0);
-  gl_->Flush();
-}
-
 void GLRenderer::DoDrawQuad(DrawingFrame* frame,
                             const DrawQuad* quad,
                             const gfx::QuadF* clip_region) {
   DCHECK(quad->rect.Contains(quad->visible_rect));
   if (quad->material != DrawQuad::TEXTURE_CONTENT) {
     FlushTextureQuadCache(SHARED_BINDING);
   }
 
   switch (quad->material) {
     case DrawQuad::INVALID:
@@ skipping 3015 matching lines @@
       texture_id = pending_overlay_resources_.back()->texture_id();
     }
 
     context_support_->ScheduleOverlayPlane(
         overlay.plane_z_order, overlay.transform, texture_id,
         ToNearestRect(overlay.display_rect), overlay.uv_rect);
   }
 }
 
 }  // namespace cc