cc: Fix tile manager shutdown by aborting all pending uploads.

cc/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_RESOURCE_PROVIDER_H_
 #define CC_RESOURCE_PROVIDER_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 226 matching lines @@
     // Map/unmap the acquired pixel buffer.
     uint8_t* mapPixelBuffer(ResourceId id);
     void unmapPixelBuffer(ResourceId id);
 
     // Update pixels from acquired pixel buffer.
     void setPixelsFromBuffer(ResourceId id);
 
     // Asynchronously update pixels from acquired pixel buffer.
     void beginSetPixels(ResourceId id);
     bool didSetPixelsComplete(ResourceId id);
+    void abortSetPixels(ResourceId id);
 
     // For tests only! This prevents detecting uninitialized reads.
     // Use setPixels or lockForWrite to allocate implicitly.
     void allocateForTesting(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) { m_currentReadLockFence = fence; }
     Fence* getReadLockFence() { return m_currentReadLockFence; }
@@ skipping 78 matching lines @@
     base::ThreadChecker m_threadChecker;
 
     scoped_refptr<Fence> m_currentReadLockFence;
 
     DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }
 
 #endif  // CC_RESOURCE_PROVIDER_H_