Add HandleInputEventAck message to allow out-of-process plugins to respond to user gestures.

ppapi/proxy/ppb_instance_proxy.cc

 // Copyright (c) 2012 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 "ppapi/proxy/ppb_instance_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
+#include "ppapi/c/pp_time.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/c/ppb_messaging.h"
 #include "ppapi/c/ppb_mouse_lock.h"
 #include "ppapi/proxy/enter_proxy.h"
 #include "ppapi/proxy/host_dispatcher.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_proxy_delegate.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 82 matching lines @@
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_FlashGetScreenSize,
                         OnHostMsgFlashGetScreenSize)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_SetFullscreen,
                         OnHostMsgSetFullscreen)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_GetScreenSize,
                         OnHostMsgGetScreenSize)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_RequestInputEvents,
                         OnHostMsgRequestInputEvents)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_ClearInputEvents,
                         OnHostMsgClearInputEvents)
+    IPC_MESSAGE_HANDLER(PpapiMsg_PPPInputEvent_HandleInputEvent_ACK,
+                        OnMsgHandleInputEventAck)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_LockMouse,
                         OnHostMsgLockMouse)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_UnlockMouse,
                         OnHostMsgUnlockMouse)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_ResolveRelativeToDocument,
                         OnHostMsgResolveRelativeToDocument)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_DocumentCanRequest,
                         OnHostMsgDocumentCanRequest)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_DocumentCanAccessDocument,
                         OnHostMsgDocumentCanAccessDocument)
@@ skipping 194 matching lines @@
   // a sync reply.
   return ValidateRequestInputEvents(true, event_classes);
 }
 
 void PPB_Instance_Proxy::ClearInputEventRequest(PP_Instance instance,
                                                 uint32_t event_classes) {
   dispatcher()->Send(new PpapiHostMsg_PPBInstance_ClearInputEvents(
       API_ID_PPB_INSTANCE, instance, event_classes));
 }
 
+void PPB_Instance_Proxy::ClosePendingUserGesture(PP_Instance instance,
+                                                 PP_TimeTicks timestamp) {
+  // Not called on the plugin side.
+  NOTREACHED();
+}
+
 void PPB_Instance_Proxy::ZoomChanged(PP_Instance instance,
                                      double factor) {
   // Not proxied yet.
   NOTIMPLEMENTED();
 }
 
 void PPB_Instance_Proxy::ZoomLimitsChanged(PP_Instance instance,
                                            double minimum_factor,
                                            double maximium_factor) {
   // Not proxied yet.
@@ skipping 206 matching lines @@
   }
 }
 
 void PPB_Instance_Proxy::OnHostMsgClearInputEvents(PP_Instance instance,
                                                    uint32_t event_classes) {
   EnterInstanceNoLock enter(instance, false);
   if (enter.succeeded())
     enter.functions()->ClearInputEventRequest(instance, event_classes);
 }
 
+void PPB_Instance_Proxy::OnMsgHandleInputEventAck(PP_Instance instance,
+                                                  PP_TimeTicks timestamp) {
+  EnterInstanceNoLock enter(instance, false);
+  if (enter.succeeded())
+    enter.functions()->ClosePendingUserGesture(instance, timestamp);
+}
+
 void PPB_Instance_Proxy::OnHostMsgPostMessage(
     PP_Instance instance,
     SerializedVarReceiveInput message) {
   EnterInstanceNoLock enter(instance, false);
   if (enter.succeeded())
     enter.functions()->PostMessage(instance, message.Get(dispatcher()));
 }
 
 void PPB_Instance_Proxy::OnHostMsgLockMouse(PP_Instance instance) {
   EnterHostFunctionForceCallback<PPB_Instance_FunctionAPI> enter(
@@ skipping 74 matching lines @@
 }
 
 void PPB_Instance_Proxy::MouseLockCompleteInHost(int32_t result,
                                                  PP_Instance instance) {
   dispatcher()->Send(new PpapiMsg_PPBInstance_MouseLockComplete(
       API_ID_PPB_INSTANCE, instance, result));
 }
 
 }  // namespace proxy
 }  // namespace ppapi