Make GMs aware of what tool they're being run in.

bench/benchmain.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "BenchTimer.h"
 #include "ResultsWriter.h"
 #include "SkBenchLogger.h"
@@ skipping 37 matching lines @@
 public:
     GMBenchFactory(const skiagm::GMRegistry* gmreg)
     : fGMFactory(gmreg->factory()) {
         fSelfRegistry = SkNEW_ARGS(BenchRegistry, (this));
     }
 
     virtual ~GMBenchFactory() { SkDELETE(fSelfRegistry); }
 
     virtual SkBenchmark* operator()() const SK_OVERRIDE {
         skiagm::GM* gm = fGMFactory(NULL);
+        gm->setMode(skiagm::GM::kBench_Mode);
         return SkNEW_ARGS(SkGMBench, (gm));
     }
 
 private:
     skiagm::GMRegistry::Factory fGMFactory;
     BenchRegistry*              fSelfRegistry;
 };
 
 static void register_gm_benches() {
     static bool gOnce;
@@ skipping 649 matching lines @@
     gContextFactory.destroyContexts();
 #endif
     return 0;
 }
 
 #if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif