Add TestingInstance::EvalScript method which posts a message that the test page can eval().

ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_testing.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 "native_client/src/shared/ppapi_proxy/plugin_ppb_testing.h"
 
 #include <cstddef>
 #include <new>
 
 #include "native_client/src/include/nacl_scoped_ptr.h"
@@ skipping 84 matching lines @@
 }
 
 PP_Bool IsOutOfProcess() {
   // The NaCl plugin is run in-process, and all calls are synchronous, so even
   // though a NaCl module runs in a separate process, it behaves as if it were
   // in-process. Furthermore, calls off of the main thread are not supported
   // (same as trusted in-process).
   return PP_FALSE;
 }
 
+void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
+  DebugPrintf("PPB_Testing::SimulateInputEvent: instance=%"NACL_PRId32", "
+              "input_event=%"NACL_PRId32"\n",
+              instance, input_event);
+
+  NaClSrpcError srpc_result =
+      PpbTestingRpcClient::PPB_Testing_SimulateInputEvent(GetMainSrpcChannel(),
+                                                          instance,
+                                                          input_event);
+  DebugPrintf("PPB_Testing::SimulateInputEvent: %s\n",
+              NaClSrpcErrorString(srpc_result));
+}
+
 struct PP_Var GetDocumentURL(PP_Instance instance,
                              struct PP_URLComponents_Dev* components) {
   DebugPrintf("PPB_Testing::GetDocumentURL: "
               "instance=%"NACL_PRIu32"\n", instance);
 
   NaClSrpcChannel* channel = GetMainSrpcChannel();
   nacl_abi_size_t components_size = kPPURLComponentsDevBytes;
   nacl_abi_size_t url_size = kMaxVarSize;
   nacl::scoped_array<char> url_bytes(new (std::nothrow) char[url_size]);
   if (url_bytes.get() == NULL)
@@ skipping 18 matching lines @@
 
 }  // namespace
 
 const PPB_Testing_Dev* PluginTesting::GetInterface() {
   static const PPB_Testing_Dev testing_interface = {
     ReadImageData,
     RunMessageLoop,
     QuitMessageLoop,
     GetLiveObjectsForInstance,
     IsOutOfProcess,
-    NULL,
+    SimulateInputEvent,
     GetDocumentURL
   };
   return &testing_interface;
 }
 
 }  // namespace ppapi_proxy