Install a hook to swap between SkPicture backends with a single define.

tools/bench_playback.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkCommandLineFlags.h"
 #include "SkForceLinking.h"
@@ skipping 27 matching lines @@
 
 static SkPicture* rerecord(const SkPicture& src, bool skr) {
     SkTileGridFactory::TileGridInfo info;
     info.fTileInterval.set(FLAGS_tile, FLAGS_tile);
     info.fMargin.setEmpty();
     info.fOffset.setZero();
     SkTileGridFactory factory(info);
 
     SkPictureRecorder recorder;
     src.draw(skr ? recorder.EXPERIMENTAL_beginRecording(src.width(), src.height(), &factory)
-                 : recorder.             beginRecording(src.width(), src.height(), &factory));
+                 : recorder.  DEPRECATED_beginRecording(src.width(), src.height(), &factory));
     return recorder.endRecording();
 }
 
 static void bench(SkPMColor* scratch, const SkPicture& src, const char* name) {
     SkAutoTUnref<const SkPicture> picture(rerecord(src, FLAGS_skr));
 
     SkAutoTDelete<SkCanvas> canvas(SkCanvas::NewRasterDirectN32(src.width(),
                                                                 src.height(),
                                                                 scratch,
                                                                 src.width() * sizeof(SkPMColor)));
@@ skipping 72 matching lines @@
         bench(scratch.get(), *src, filename.c_str());
     }
     return failed ? 1 : 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif