Add GetLiveVars to PPB_Testing_Dev. Fix leaks it uncovered.

ppapi/tests/test_graphics_2d.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ppapi/tests/test_graphics_2d.h"
 
 #include <stdlib.h>
 #include <string.h>
 
 #include "ppapi/c/dev/ppb_testing_dev.h"
@@ skipping 20 matching lines @@
 }
 
 }  // namespace
 
 bool TestGraphics2D::Init() {
   graphics_2d_interface_ = static_cast<const PPB_Graphics2D*>(
       pp::Module::Get()->GetBrowserInterface(PPB_GRAPHICS_2D_INTERFACE));
   image_data_interface_ = static_cast<const PPB_ImageData*>(
       pp::Module::Get()->GetBrowserInterface(PPB_IMAGEDATA_INTERFACE));
   return graphics_2d_interface_ && image_data_interface_ &&
-         InitTestingInterface();
+         CheckTestingInterface();
 }
 
 void TestGraphics2D::RunTests(const std::string& filter) {
   RUN_TEST(InvalidResource, filter);
   RUN_TEST(InvalidSize, filter);
   RUN_TEST(Humongous, filter);
   RUN_TEST(InitToZero, filter);
   RUN_TEST(Describe, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(Paint, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(Scroll, filter);
@@ skipping 569 matching lines @@
       if (rv != PP_OK_COMPLETIONPENDING)
         return "Second flush must fail asynchronously.";
     } else {
       if (rv == PP_OK || rv == PP_OK_COMPLETIONPENDING)
         return "Second flush succeeded before callback ran.";
     }
   }
 
   PASS();
 }