Clarify/fix fullscreen semantics, and add GetScreenSize

ppapi/proxy/ppb_fullscreen_proxy.cc

 // Copyright (c) 2010 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_fullscreen_proxy.h"
 
 #include "ppapi/c/dev/ppb_fullscreen_dev.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 
@@ skipping 17 matching lines @@
   PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
   if (!dispatcher)
     return PP_FALSE;
 
   PP_Bool result = PP_FALSE;
   dispatcher->Send(new PpapiHostMsg_PPBFullscreen_SetFullscreen(
       INTERFACE_ID_PPB_FULLSCREEN, instance, fullscreen, &result));
   return result;
 }
 
+PP_Bool GetScreenSize(PP_Instance instance, PP_Size* size) {
+  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
+  if (!dispatcher)
+    return PP_FALSE;
+
+  PP_Bool result = PP_FALSE;
+  dispatcher->Send(new PpapiHostMsg_PPBFullscreen_GetScreenSize(
+      INTERFACE_ID_PPB_FULLSCREEN, instance, &result, size));
+  return result;
+}
+
 const PPB_Fullscreen_Dev fullscreen_interface = {
   &IsFullscreen,
-  &SetFullscreen
+  &SetFullscreen,
+  &GetScreenSize
 };
 
 InterfaceProxy* CreateFullscreenProxy(Dispatcher* dispatcher,
                                       const void* target_interface) {
   return new PPB_Fullscreen_Proxy(dispatcher, target_interface);
 }
 
 }  // namespace
 
 PPB_Fullscreen_Proxy::PPB_Fullscreen_Proxy(Dispatcher* dispatcher,
@@ skipping 16 matching lines @@
   return &info;
 }
 
 bool PPB_Fullscreen_Proxy::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_Fullscreen_Proxy, msg)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFullscreen_IsFullscreen,
                         OnMsgIsFullscreen)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFullscreen_SetFullscreen,
                         OnMsgSetFullscreen)
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFullscreen_GetScreenSize,
+                        OnMsgGetScreenSize)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   // TODO(brettw): handle bad messages!
   return handled;
 }
 
 void PPB_Fullscreen_Proxy::OnMsgIsFullscreen(PP_Instance instance,
                                              PP_Bool* result) {
   *result = ppb_fullscreen_target()->IsFullscreen(instance);
 }
 
 void PPB_Fullscreen_Proxy::OnMsgSetFullscreen(PP_Instance instance,
                                               PP_Bool fullscreen,
                                               PP_Bool* result) {
   *result = ppb_fullscreen_target()->SetFullscreen(instance, fullscreen);
 }
 
+void PPB_Fullscreen_Proxy::OnMsgGetScreenSize(PP_Instance instance,
+                                              PP_Bool* result,
+                                              PP_Size* size) {
+  *result = ppb_fullscreen_target()->GetScreenSize(instance, size);
+}
+
 }  // namespace proxy
 }  // namespace pp