Update bench pictures to time image decode & upload costs

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
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     /**
      * This method should be called whenever a GrTexture is unreffed or
      * switched from exclusive to non-exclusive. This
      * gives the resource cache a chance to discard unneeded textures.
      * Note: this entry point will be removed once totally ref-driven
      * cache maintenance is implemented
      */
     void purgeCache();
 
     /**
+     * Purge all the unlocked resources from the cache.
+     * This entry point is mainly meant for timing texture uploads
+     * and is not defined in normal builds of Skia.
+     */
+    void purgeAllUnlockedResources();
+
+    /**
      * Creates a texture that is outside the cache. Does not count against
      * cache's budget.
      */
     GrTexture* createUncachedTexture(const GrTextureDesc& desc,
                                      void* srcData,
                                      size_t rowBytes);
 
     /**
      * Returns true if the specified use of an indexed texture is supported.
      * Support may depend upon whether the texture params indicate that the
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     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif