Make it possible to enable/disable specific ppapi tests. Migrate PostMessage tests.

ppapi/tests/test_broker.h

Index: ppapi/tests/test_broker.h
diff --git a/ppapi/tests/test_broker.h b/ppapi/tests/test_broker.h
index 4cef9e541d61fb0fcc9cf595132cafa0eea886ec..c11d2f8952a917741e532dbdd2c45de7341e7ce3 100644
--- a/ppapi/tests/test_broker.h
+++ b/ppapi/tests/test_broker.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -18,7 +18,7 @@ class TestBroker : public TestCase {
 
   // TestCase implementation.
   virtual bool Init();
-  virtual void RunTest();
+  virtual void RunTests(const std::string& filter);
 
  private:
   std::string TestCreate();