Added shorcut:"F11" for exit fullscreen context menu.

chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc

Index: chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
diff --git a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
index 639219ead695411c916b67e27b2d79a6eda53459..0ff4e7fd28dc3eb4ea8f5224fb298a908ed4d3f9 100644
--- a/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
+++ b/chrome/browser/ui/views/renderer_context_menu/render_view_context_menu_views.cc
@@ -137,6 +137,9 @@ bool RenderViewContextMenuViews::GetAcceleratorForCommandId(
       if (IsHTML5Fullscreen()) {
         *accel = ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE);
         return true;
+      } else {
+        *accel = ui::Accelerator(ui::VKEY_F11, ui::EF_NONE);

[Lei Zhang, 2017/02/28 04:17:35]

I don't know what the right answer is, but this isn't it. See the ChromeOS code
right below here. We don't want to show F11 on ChromeOS.

+        return true;
       }
 
 #if defined(OS_CHROMEOS)