Fullscreen JS API implementation.

content/common/view_messages.h

 // 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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/common_param_traits.h"
@@ skipping 1182 matching lines @@
 IPC_MESSAGE_ROUTED0(ViewMsg_GetFPS)
 
 // Used to instruct the RenderView to go into "view source" mode.
 IPC_MESSAGE_ROUTED0(ViewMsg_EnableViewSourceMode)
 
 // Instructs the renderer to save the current page to MHTML.
 IPC_MESSAGE_ROUTED2(ViewMsg_SavePageAsMHTML,
                     int /* job_id */,
                     IPC::PlatformFileForTransit /* file handle */)
 
+// Exit fullscreen.
+IPC_MESSAGE_ROUTED0(ViewMsg_ExitFullscreen)
+
 // Messages sent from the renderer to the browser.
 
 // Sent by the renderer when it is creating a new window.  The browser creates
 // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
 // MSG_ROUTING_NONE, the view couldn't be created.
 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_CreateWindow,
                             ViewHostMsg_CreateWindow_Params,
                             int /* route_id */,
                             int64 /* cloned_session_storage_namespace_id */)
 
@@ skipping 740 matching lines @@
                     std::string /* scheme */,
                     GURL /* url */,
                     string16 /* title */)
 
 // Stores new inspector setting in the profile.
 // TODO(jam): this should be in the chrome module
 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
                     std::string,  /* key */
                     std::string /* value */)
 
+// Puts the browser into fullscreen mode.

[Peter Kasting, 2011/08/15 22:42:54]

Nit: Slightly more commentary about tab- versus browser-fullscreen mode?

[koz (OOO until 15th September), 2011/08/16 07:06:55]

Good point. I've extended the comment slightly - I feel like the only
differences between "browser" and "tab" fullscreen are minor behavioural
differences that only manifest in the handling of edge cases, so the code here
wouldn't benefit from too much more of an explanation.

+IPC_MESSAGE_ROUTED1(ViewHostMsg_ToggleFullscreen,
+                    bool /* enter_fullscreen */);
+
 // Send back a string to be recorded by UserMetrics.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_UserMetricsRecordAction,
                      std::string /* action */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)
 
 // Notifies the browser that the page was or was not saved as MHTML.
 IPC_MESSAGE_CONTROL2(ViewHostMsg_SavedPageAsMHTML,
                      int /* job_id */,
                      bool /* success */)