Fullscreen JS API implementation.

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 7c81a070fa0f62c3b6403696d0712deb7767fad3..2a7a8392840217d537553877956f0504969bedf7 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -1244,6 +1244,9 @@ 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
@@ -2053,6 +2056,11 @@ IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
                     std::string,  /* key */
                     std::string /* value */)
 
+// Puts the browser into "tab fullscreen" mode for the sending renderer.
+// See the comment in chrome/browser/ui/browser.h for more details.
+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 */)