Fullscreen: make fullscreen requests come from RenderFrame

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index 67f1d349f3b882aa6a18b9a113145fbfc00005fd..03114479d1365973ab0c20d9bf562fbe98d66280 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -808,6 +808,11 @@ IPC_MESSAGE_ROUTED2(FrameHostMsg_BeginNavigation,
 // after the frame has painted something.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)
 
+// 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(FrameHostMsg_ToggleFullscreen,
+                    bool /* enter_fullscreen */)
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.