aura: Allow delegated frames to be used by more than one impl layer.

cc/resources/resource_provider.h

 // 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.
 
 #ifndef CC_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <deque>
 #include <set>
 #include <string>
@@ skipping 309 matching lines @@
   int GetImageStride(ResourceId id);
 
   // For tests only! This prevents detecting uninitialized reads.
   // Use SetPixels or LockForWrite to allocate implicitly.
   void AllocateForTesting(ResourceId id);
 
   // For tests only!
   void CreateForTesting(ResourceId id);
 
   GLint WrapModeForTesting(ResourceId id);
+  GLenum TargetForTesting(ResourceId id);
 
   // Sets the current read fence. If a resource is locked for read
   // and has read fences enabled, the resource will not allow writes
   // until this fence has passed.
   void SetReadLockFence(scoped_refptr<Fence> fence) {
     current_read_lock_fence_ = fence;
   }
   Fence* GetReadLockFence() { return current_read_lock_fence_.get(); }
 
   // Enable read lock fences for a specific resource.
@@ skipping 143 matching lines @@
 
   scoped_refptr<Fence> current_read_lock_fence_;
   bool use_rgba_4444_texture_format_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_