Add new API to allow layer hoisting/atlasing across picture piles

tools/bench_pictures_main.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 "BenchLogger.h"
 #include "Timer.h"
 #include "CopyTilesRenderer.h"
@@ skipping 383 matching lines @@
             ++failures;
         }
     } else {
         SkString warning;
         warning.printf("Warning: skipping %s\n", input);
         gLogger.logError(warning);
     }
     return failures;
 }
 
+extern int gBindFrameBufferCount;
+
 int tool_main(int argc, char** argv);
 int tool_main(int argc, char** argv) {
     SetupCrashHandler();
     SkString usage;
     usage.printf("Time drawing .skp files.\n"
                  "\tPossible arguments for --filter: [%s]\n\t\t[%s]",
                  filterTypesUsage().c_str(), filterFlagsUsage().c_str());
     SkCommandLineFlags::SetUsage(usage.c_str());
     SkCommandLineFlags::Parse(argc, argv);
 
@@ skipping 52 matching lines @@
         gLogger.logError(err);
         return 1;
     }
 #if SK_LAZY_CACHE_STATS
     if (FLAGS_trackDeferredCaching) {
         SkDebugf("Total cache hit rate: %f\n",
                  (double) gTotalCacheHits / (gTotalCacheHits + gTotalCacheMisses));
     }
 #endif
     gWriter.end();
+    SkDebugf("\n************** BindFramebuffers: %d**********************\n", gBindFrameBufferCount);
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif