add --writeChecksumBasedFilenames flag to render_pictures

tools/PictureBenchmark.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBenchLogger.h"
 #include "BenchTimer.h"
 #include "PictureBenchmark.h"
@@ skipping 55 matching lines @@
     SkASSERT(pict);
     if (NULL == pict) {
         return;
     }
 
     SkASSERT(fRenderer != NULL);
     if (NULL == fRenderer) {
         return;
     }
 
-    fRenderer->init(pict);
+    fRenderer->init(pict, NULL, NULL, false);
 
     // We throw this away to remove first time effects (such as paging in this program)
     fRenderer->setup();
     fRenderer->render(NULL);
     fRenderer->resetState(true);   // flush, swapBuffers and Finish
 
     if (fPurgeDecodedTex) {
         fRenderer->purgeTextures();
     }
 
@@ skipping 162 matching lines @@
                                                             numInnerLoops);
         result.append("\n");
         this->logProgress(result.c_str());
 #endif
     }
 
     fRenderer->end();
 }
 
 }