PPAPI: Revive ppp_messaging_proxy_perftest

This test can measure PPP_Messaging performance and indirectly IPC
performance. It regressed due to a couple of minor changes; this
gets it running again.

BUG=

Review URL: https://codereview.chromium.org/453003002

Cr-Commit-Position: refs/heads/master@{#288433}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288433 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/proxy/ppp_messaging_proxy_perftest.cc

@@ -6,9 +6,11 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/test/perf_time_logger.h"
 #include "ppapi/c/ppp_messaging.h"
+#include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppapi_proxy_test.h"
 #include "ppapi/proxy/serialized_var.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
+#include "ppapi/shared_impl/proxy_lock.h"
 #include "ppapi/shared_impl/var.h"
 #include "ppapi/shared_impl/var_tracker.h"
 
@@ -19,6 +21,7 @@ namespace {
 base::WaitableEvent handle_message_called(false, false);
 
 void HandleMessage(PP_Instance /* instance */, PP_Var message_data) {
+  ppapi::ProxyAutoLock lock;
   StringVar* string_var = StringVar::FromPPVar(message_data);
   DCHECK(string_var);
   // Retrieve the string to make sure the proxy can't "optimize away" sending
@@ -49,10 +52,6 @@ class PppMessagingPerfTest : public TwoWayTest {
 
 // Tests the performance of sending strings through the proxy.
 TEST_F(PppMessagingPerfTest, StringPerformance) {
-  // Grab the host-side proxy of ppp_messaging.
-  const PPP_Messaging* ppp_messaging = static_cast<const PPP_Messaging*>(
-      host().host_dispatcher()->GetProxiedInterface(
-          PPP_MESSAGING_INTERFACE));
   const PP_Instance kTestInstance = pp_instance();
   int seed = 123;
   int string_count = 1000;
@@ -77,7 +76,13 @@ TEST_F(PppMessagingPerfTest, StringPerformance) {
   for (int i = 0; i < string_count; ++i) {
     const std::string test_string(rand() % max_string_size, 'a');
     PP_Var host_string = StringVar::StringToPPVar(test_string);
-    ppp_messaging->HandleMessage(kTestInstance, host_string);
+    // We don't have a host-side PPP_Messaging interface; just send the message
+    // directly like the proxy does.
+    host().host_dispatcher()->Send(new PpapiMsg_PPPMessaging_HandleMessage(
+        ppapi::API_ID_PPP_MESSAGING,
+        kTestInstance,
+        ppapi::proxy::SerializedVarSendInput(host().host_dispatcher(),
+                                             host_string)));
     handle_message_called.Wait();
     PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(host_string);
   }