Various fixes to make ppapi_unittests pass again.

ppapi/proxy/ppp_messaging_proxy_unittest.cc

Index: ppapi/proxy/ppp_messaging_proxy_unittest.cc
diff --git a/ppapi/proxy/ppp_messaging_proxy_unittest.cc b/ppapi/proxy/ppp_messaging_proxy_unittest.cc
index 8e46a4a3d957265185110ca42c64527b79b2d08a..98cfadd10d1e3a45c639ec201c12b39b033f99ed 100644
--- a/ppapi/proxy/ppp_messaging_proxy_unittest.cc
+++ b/ppapi/proxy/ppp_messaging_proxy_unittest.cc
@@ -41,8 +41,6 @@ PPP_Messaging ppp_messaging_mock = {
   &HandleMessage
 };
 
-}  // namespace
-
 class PPP_Messaging_ProxyTest : public TwoWayTest {
  public:
   PPP_Messaging_ProxyTest()
@@ -52,6 +50,21 @@ class PPP_Messaging_ProxyTest : public TwoWayTest {
   }
 };
 
+void CompareAndReleaseStringVar(PluginProxyTestHarness* plugin_harness,
+                                PP_Var received_var,
+                                const std::string& test_string) {
+  Var* received_string = plugin_harness->var_tracker().GetVar(received_var);
+  ASSERT_TRUE(received_string);
+  ASSERT_TRUE(received_string->AsStringVar());
+  EXPECT_EQ(test_string, received_string->AsStringVar()->value());
+  // Now release the var, and the string should go away (because the ref
+  // count should be one).
+  plugin_harness->var_tracker().ReleaseVar(received_var);
+  EXPECT_FALSE(StringVar::FromPPVar(received_var));
+}
+
+}  // namespace
+
 TEST_F(PPP_Messaging_ProxyTest, SendMessages) {
   // Grab the host-side proxy of ppp_messaging.
   const PPP_Messaging* ppp_messaging = static_cast<const PPP_Messaging*>(
@@ -109,14 +122,11 @@ TEST_F(PPP_Messaging_ProxyTest, SendMessages) {
   handle_message_called.Wait();
   EXPECT_EQ(expected_instance, received_instance);
   EXPECT_EQ(expected_var.type, received_var.type);
-  Var* received_string = plugin().var_tracker().GetVar(received_var);
-  ASSERT_TRUE(received_string);
-  ASSERT_TRUE(received_string->AsStringVar());
-  EXPECT_EQ(kTestString, received_string->AsStringVar()->value());
-  // Now release the var, and the string should go away (because the ref
-  // count should be one).
-  plugin().var_tracker().ReleaseVar(received_var);
-  EXPECT_FALSE(StringVar::FromPPVar(received_var));
+  PostTaskOnRemoteHarness(
+      base::Bind(CompareAndReleaseStringVar,
+                 &plugin(),
+                 received_var,
+                 kTestString));
 }
 
 }  // namespace proxy