Cleanup: Use SkAutoGraphics in gm and tests.

gm/gmmain.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.
  */
 
 /*
  * Code for the "gm" (Golden Master) rendering comparison tool.
  *
@@ skipping 2239 matching lines @@
     usage.printf("Run the golden master tests.\n");
     SkCommandLineFlags::SetUsage(usage.c_str());
     SkCommandLineFlags::Parse(argc, argv);
 
 #if SK_ENABLE_INST_COUNT
     if (FLAGS_leaks) {
         gPrintInstCount = true;
     }
 #endif
 
-    SkGraphics::Init();
+    SkAutoGraphics ag;
 
     setSystemPreferences();
     GMMain gmmain;
 
     SkTDArray<size_t> configs;
 
     int moduloRemainder = -1;
     int moduloDivisor = -1;
     SkTDArray<const PDFRasterizerData*> pdfRasterizers;
     SkTDArray<SkScalar> tileGridReplayScales;
@@ skipping 196 matching lines @@
         if (kGPU_Backend == config.fBackend) {
             GrContext* gr = grFactory->get(config.fGLContextType, gpuAPI);
 
            gr->dumpFontCache();
         }
     }
 #endif
 
     delete grFactory;
 #endif
-    SkGraphics::Term();
 
     return (reportError) ? -1 : 0;
 }
 
 void GMMain::installFilter(SkCanvas* canvas) {
     if (FLAGS_forceBWtext) {
         canvas->setDrawFilter(SkNEW(BWTextDrawFilter))->unref();
     }
 }
 
 #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