Remove GraphicsContext3D:: stubs from cc

cc/prioritized_texture_manager.cc

 // Copyright 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 "config.h"
 
 #include "CCPrioritizedTextureManager.h"
 
 #include "base/debug/trace_event.h"
 #include "base/stl_util.h"
@@ skipping 329 matching lines @@
     texture->setAbovePriorityCutoff(false);
 }
 
 void CCPrioritizedTextureManager::returnBackingTexture(CCPrioritizedTexture* texture)
 {
     DCHECK(CCProxy::isMainThread() || (CCProxy::isImplThread() && CCProxy::isMainThreadBlocked()));
     if (texture->backing())
         texture->unlink();
 }
 
-CCPrioritizedTexture::Backing* CCPrioritizedTextureManager::createBacking(IntSize size, GC3Denum format, CCResourceProvider* resourceProvider)
+CCPrioritizedTexture::Backing* CCPrioritizedTextureManager::createBacking(IntSize size, GLenum format, CCResourceProvider* resourceProvider)
 {
     DCHECK(CCProxy::isImplThread() && CCProxy::isMainThreadBlocked());
     DCHECK(resourceProvider);
     CCResourceProvider::ResourceId resourceId = resourceProvider->createResource(m_pool, size, format, CCResourceProvider::TextureUsageAny);
     CCPrioritizedTexture::Backing* backing = new CCPrioritizedTexture::Backing(resourceId, resourceProvider, size, format);
     m_memoryUseBytes += backing->bytes();
     return backing;
 }
 
 void CCPrioritizedTextureManager::evictFirstBackingResource(CCResourceProvider* resourceProvider)
@@ skipping 58 matching lines @@
         if (reachedUnrecyclable)
             DCHECK(!backing->canBeRecycled());
         else
             DCHECK(backing->canBeRecycled());
         previous_backing = backing;
     }
 #endif
 }
 
 } // namespace cc