Fixing leaky handling of SkImage in SkDeferredCanvas.

src/utils/SkDeferredCanvas.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDeferredCanvas.h"
 
@@ skipping 133 matching lines @@
     }
     fBlockList.reset();
 
     if (fBlock) {
         fReader.playback(fBlock, fBytesWritten, flags);
         fBlock = NULL;
     }
 
     // Release all allocated blocks
     fAllocator.reset();
+
+    this->purgeCaches();
 }
 
 //-----------------------------------------------------------------------------
 // SkDeferredDevice
 //-----------------------------------------------------------------------------
 class SkDeferredDevice : public SkBaseDevice {
 public:
     explicit SkDeferredDevice(SkSurface* surface);
     ~SkDeferredDevice();
 
@@ skipping 818 matching lines @@
 SkDrawFilter* SkDeferredCanvas::setDrawFilter(SkDrawFilter* filter) {
     this->drawingCanvas()->setDrawFilter(filter);
     this->INHERITED::setDrawFilter(filter);
     this->recordedDrawCommand();
     return filter;
 }
 
 SkCanvas* SkDeferredCanvas::canvasForDrawIter() {
     return this->drawingCanvas();
 }