Fullscreen: make fullscreen requests come from RenderFrame

extensions/browser/app_window/app_window.cc

Index: extensions/browser/app_window/app_window.cc
diff --git a/extensions/browser/app_window/app_window.cc b/extensions/browser/app_window/app_window.cc
index 285ca2d788ed89c4209a6df2edc23ae8ae83602a..3bc622580bd6e1564180fdbc513fef346f869306 100644
--- a/extensions/browser/app_window/app_window.cc
+++ b/extensions/browser/app_window/app_window.cc
@@ -929,6 +929,15 @@ void AppWindow::NavigationStateChanged(content::WebContents* source,
     native_app_window_->UpdateWindowIcon();
 }
 
+void AppWindow::EnterFullscreenModeForTab(content::WebContents* source,
+                                          const GURL& origin) {
+  ToggleFullscreenModeForTab(source, true);
+}
+
+void AppWindow::ExitFullscreenModeForTab(content::WebContents* source) {
+  ToggleFullscreenModeForTab(source, false);
+}
+
 void AppWindow::ToggleFullscreenModeForTab(content::WebContents* source,
                                            bool enter_fullscreen) {
   const Extension* extension = GetExtension();