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

ppapi/tests/test_var_deprecated.cc

Index: ppapi/tests/test_var_deprecated.cc
diff --git a/ppapi/tests/test_var_deprecated.cc b/ppapi/tests/test_var_deprecated.cc
index 253058ddc059eb2a5787a25bc5c4b33e66440142..66ef23a8a7ee940a154bdeca8f080029de0b18f6 100644
--- a/ppapi/tests/test_var_deprecated.cc
+++ b/ppapi/tests/test_var_deprecated.cc
@@ -73,16 +73,16 @@ bool TestVarDeprecated::Init() {
   return var_interface_ && InitTestingInterface();
 }
 
-void TestVarDeprecated::RunTest() {
-  RUN_TEST(BasicString);
-  RUN_TEST(InvalidAndEmpty);
-  RUN_TEST(InvalidUtf8);
-  RUN_TEST(NullInputInUtf8Conversion);
-  RUN_TEST(ValidUtf8);
-  RUN_TEST(Utf8WithEmbeddedNulls);
-  RUN_TEST(VarToUtf8ForWrongType);
-  RUN_TEST(HasPropertyAndMethod);
-  RUN_TEST(PassReference);
+void TestVarDeprecated::RunTests(const std::string& filter) {
+  RUN_TEST(BasicString, filter);
+  RUN_TEST(InvalidAndEmpty, filter);
+  RUN_TEST(InvalidUtf8, filter);
+  RUN_TEST(NullInputInUtf8Conversion, filter);
+  RUN_TEST(ValidUtf8, filter);
+  RUN_TEST(Utf8WithEmbeddedNulls, filter);
+  RUN_TEST(VarToUtf8ForWrongType, filter);
+  RUN_TEST(HasPropertyAndMethod, filter);
+  RUN_TEST(PassReference, filter);
 }
 
 pp::deprecated::ScriptableObject* TestVarDeprecated::CreateTestObject() {