Cleanup: Use SkAutoGraphics in gm and tests.

tests/skia_test.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 "CrashHandler.h"
 #include "OverwriteLine.h"
 #include "Resources.h"
@@ skipping 107 matching lines @@
 int test_main();
 int test_main() {
     SetupCrashHandler();
 
 #if SK_ENABLE_INST_COUNT
     if (FLAGS_leaks) {
         gPrintInstCount = true;
     }
 #endif
 
-    SkGraphics::Init();
+    SkAutoGraphics ag;
 
     {
         SkString header("Skia UnitTests:");
         if (!FLAGS_match.isEmpty()) {
             header.appendf(" --match");
             for (int index = 0; index < FLAGS_match.count(); ++index) {
                 header.appendf(" %s", FLAGS_match[index]);
             }
         }
         SkString tmpDir = Test::GetTmpDir();
@@ skipping 65 matching lines @@
         SkNEW_ARGS(SkTestRunnable, (gpuTests[i], &failCount))->run();
     }
 
     // Block until threaded tests finish.
     cpuTests.wait();
 
     if (FLAGS_verbose) {
         SkDebugf("\nFinished %d tests, %d failures, %d skipped. (%d internal tests)",
                  toRun, failCount, skipCount, reporter.countTests());
     }
-    SkGraphics::Term();
 
     SkDebugf("\n");
     return (failCount == 0) ? 0 : 1;
 }
 
 #if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return test_main();
 }
 #endif