Shrink texture uploader when not visible.

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 81 matching lines @@
     void deleteResource(ResourceId);
 
     // Update pixels from image, copying sourceRect (in image) into destRect (in the resource).
     void setPixels(ResourceId, const uint8_t* image, const gfx::Rect& imageRect, const gfx::Rect& sourceRect, const gfx::Vector2d& destOffset);
 
     // Check upload status.
     size_t numBlockingUploads();
     void markPendingUploadsAsNonBlocking();
     double estimatedUploadsPerSecond();
     void flushUploads();
+    void releaseCachedData();
 
     // Flush all context operations, kicking uploads and ensuring ordering with
     // respect to other contexts.
     void flush();
 
     // Only flush the command buffer if supported.
     // Returns true if the shallow flush occurred, false otherwise.
     bool shallowFlushIfSupported();
 
     // Creates accounting for a child. Returns a child ID.
@@ skipping 224 matching lines @@
     base::ThreadChecker m_threadChecker;
 
     scoped_refptr<Fence> m_currentReadLockFence;
 
     DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }
 
 #endif  // CC_RESOURCE_PROVIDER_H_