gpu: Extend CopyTextureCHROMIUM with support for copying part of source texture.

cc/resources/resource_provider.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 "cc/resources/resource_provider.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/containers/hash_tables.h"
@@ skipping 1968 matching lines @@
     // implementations. crbug.com/436314
     gl->BeginQueryEXT(GL_COMMANDS_ISSUED_CHROMIUM,
                       source_resource->gl_read_lock_query_id);
 #else
     gl->BeginQueryEXT(GL_COMMANDS_COMPLETED_CHROMIUM,
                       source_resource->gl_read_lock_query_id);
 #endif
   }
   DCHECK(!dest_resource->image_id);
   dest_resource->allocated = true;
-  gl->CopySubTextureCHROMIUM(dest_resource->target, source_resource->gl_id,
-                             dest_resource->gl_id, 0, 0);
+  gl->CopySubTextureCHROMIUM(
+      dest_resource->target, source_resource->gl_id, dest_resource->gl_id, 0, 0,
+      0, 0, dest_resource->size.width(), dest_resource->size.height());
   if (source_resource->gl_read_lock_query_id) {
     // End query and create a read lock fence that will prevent access to
 // source resource until CopySubTextureCHROMIUM command has completed.
 #if defined(OS_CHROMEOS)
     gl->EndQueryEXT(GL_COMMANDS_ISSUED_CHROMIUM);
 #else
     gl->EndQueryEXT(GL_COMMANDS_COMPLETED_CHROMIUM);
 #endif
     source_resource->read_lock_fence = make_scoped_refptr(
         new CopyTextureFence(gl, source_resource->gl_read_lock_query_id));
@@ skipping 51 matching lines @@
 }
 
 class GrContext* ResourceProvider::GrContext(bool worker_context) const {
   ContextProvider* context_provider =
       worker_context ? output_surface_->worker_context_provider()
                      : output_surface_->context_provider();
   return context_provider ? context_provider->GrContext() : NULL;
 }
 
 }  // namespace cc