Block keyboard and mouse input when maximize mode is activated by accelerometer.

ash/root_window_controller.cc

Index: ash/root_window_controller.cc
diff --git a/ash/root_window_controller.cc b/ash/root_window_controller.cc
index d4878b647d1b9b3ae510e46c37c4e000c09a87e0..4d2dd8da22d3650dbff86f93c6425e60f5f10f3d 100644
--- a/ash/root_window_controller.cc
+++ b/ash/root_window_controller.cc
@@ -703,13 +703,14 @@ void RootWindowController::Init(RootWindowType root_window_type,
       shell->InitKeyboard();
   } else {
     root_window_layout()->OnWindowResized();
-    shell->desktop_background_controller()->OnRootWindowAdded(root_window());
-    shell->high_contrast_controller()->OnRootWindowAdded(root_window());
     host_->Show();
 
     // Create a shelf if a user is already logged in.
     if (shell->session_state_delegate()->NumberOfLoggedInUsers())
       shelf()->CreateShelf();
+
+    // Notify shell observers about new root window.
+    shell->OnRootWindowAdded(root_window());
   }
 }