cc: Changes to use GL API for GpuMemoryBuffers

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 172 matching lines @@
   // The updater can access textures while the GLRenderer is using them.
   capabilities_.allow_partial_texture_updates = true;
 
   // Check for texture fast paths. Currently we always use MO8 textures,
   // so we only need to avoid POT textures if we have an NPOT fast-path.
   capabilities_.avoid_pow2_textures =
       extensions.count("GL_CHROMIUM_fast_NPOT_MO8_textures") > 0;
 
   capabilities_.using_offscreen_context3d = true;
 
+  capabilities_.using_gpu_memory_buffers =
+      extensions.count("GL_CHROMIUM_map_image") > 0;

[piman, 2013/05/21 18:15:14]

nit: can you add this to delegating_renderer.cc too?

[kaanb, 2013/05/21 20:25:41]

Done.

+
   is_using_bind_uniform_ =
       extensions.count("GL_CHROMIUM_bind_uniform_location") > 0;
 
   // Make sure scissoring starts as disabled.
   GLC(context_, context_->disable(GL_SCISSOR_TEST));
   DCHECK(!is_scissor_enabled_);
 
   if (!InitializeSharedObjects())
     return false;
 
@@ skipping 2594 matching lines @@
     resource_provider_->DeleteResource(on_demand_tile_raster_resource_id_);
 
   ReleaseRenderPassTextures();
 }
 
 bool GLRenderer::IsContextLost() {
   return (context_->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc