Flush after ResourcePool deletions complete

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 132 matching lines @@
   ResourceId CreateResourceFromTextureMailbox(
       const TextureMailbox& mailbox,
       std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl);
 
   ResourceId CreateResourceFromTextureMailbox(
       const TextureMailbox& mailbox,
       std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl,
       bool read_lock_fences_enabled);
 
   void DeleteResource(ResourceId id);
+  // In the case of GPU resources, we may need to flush the GL context to ensure
+  // that texture deletions are seen in a timely fashion. This function should
+  // be called after texture deletions that may happen during an idle state.
+  void FlushPendingDeletions() const;
 
   // Update pixels from image, copying source_rect (in image) to dest_offset (in
   // the resource).
   void CopyToResource(ResourceId id,
                       const uint8_t* image,
                       const gfx::Size& image_size);
 
   // Generates sync tokesn for resources which need a sync token.
   void GenerateSyncTokenForResource(ResourceId resource_id);
   void GenerateSyncTokenForResources(const ResourceIdArray& resource_ids);
@@ skipping 586 matching lines @@
   // Set of resource Ids that would like to be notified about promotion hints.
   ResourceIdSet wants_promotion_hints_set_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_