Disable browser key reservation in fullscreen mode

chrome/browser/ui/browser_command_controller.cc

Index: chrome/browser/ui/browser_command_controller.cc
diff --git a/chrome/browser/ui/browser_command_controller.cc b/chrome/browser/ui/browser_command_controller.cc
index 0d947e9a4f24cf96a056d565a89e227d60a8f26f..38a7e8a12c1d3875bbc7393f403c464d7c079e4b 100644
--- a/chrome/browser/ui/browser_command_controller.cc
+++ b/chrome/browser/ui/browser_command_controller.cc
@@ -199,8 +199,12 @@ bool BrowserCommandController::IsReservedCommandOrKey(
   }
 #endif
 
-  if (window()->IsFullscreen() && command_id == IDC_FULLSCREEN)
-    return true;
+  if (window()->IsFullscreen()) {
+    // In full-screen mode, all the keys, except for F11, should be delivered to
+    // the web page. This has been discussed in the document Allowing sites to
+    // intercept keyboard shortcuts at https://goo.gl/r6XmNt.
+    return command_id == IDC_FULLSCREEN;
+  }
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   // If this key was registered by the user as a content editing hotkey, then