Fix several issues around fullscreen Mac plugins:...

chrome/browser/plugin_process_host.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_PLUGIN_PROCESS_HOST_H_
 #define CHROME_BROWSER_PLUGIN_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include <set>
@@ skipping 94 matching lines @@
 #if defined(OS_WIN)
   void OnPluginWindowDestroyed(HWND window, HWND parent);
   void OnDownloadUrl(const std::string& url, int source_child_unique_id,
                      gfx::NativeWindow caller_window);
 #endif
 
 #if defined(OS_LINUX)
   void OnMapNativeViewId(gfx::NativeViewId id, gfx::PluginWindowHandle* output);
 #endif
 
+#if defined(OS_MACOSX)
+  void OnPluginSelectWindow(uint32 window_id, gfx::Rect window_rect);
+  void OnPluginShowWindow(uint32 window_id, gfx::Rect window_rect);
+  void OnPluginHideWindow(uint32 window_id, gfx::Rect window_rect);
+  void OnPluginDisposeWindow(uint32 window_id, gfx::Rect window_rect);
+#endif
+
   virtual bool CanShutdown() { return sent_requests_.empty(); }
 
   struct ChannelRequest {
     ChannelRequest(ResourceMessageFilter* renderer_message_filter,
                    const std::string& m, IPC::Message* r) :
         mime_type(m), reply_msg(r),
         renderer_message_filter_(renderer_message_filter) { }
     std::string mime_type;
     IPC::Message* reply_msg;
     scoped_refptr<ResourceMessageFilter> renderer_message_filter_;
@@ skipping 11 matching lines @@
   WebPluginInfo info_;
 
   // Helper class for handling PluginProcessHost_ResolveProxy messages (manages
   // the requests to the proxy service).
   ResolveProxyMsgHelper resolve_proxy_msg_helper_;
 
 #if defined(OS_WIN)
   // Tracks plugin parent windows created on the UI thread.
   std::set<HWND> plugin_parent_windows_set_;
 #endif
+#if defined(OS_MACOSX)
+  // Tracks plugin windows currently visible
+  std::set<uint32> plugin_visible_windows_set_;
+#endif
 
   DISALLOW_COPY_AND_ASSIGN(PluginProcessHost);
 };
 
 #endif  // CHROME_BROWSER_PLUGIN_PROCESS_HOST_H_