Fixes for -Wunused-function on Linux, Android and ChromeOS

ash/wm/dock/docked_window_layout_manager.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/dock/docked_window_layout_manager.h"
 
 #include "ash/ash_switches.h"
 #include "ash/launcher/launcher.h"
 #include "ash/screen_ash.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 64 matching lines @@
     views::View* content_view = new views::View;
     content_view->set_background(
         views::Background::CreateSolidBackground(kDockBackgroundColor));
     SetContentsView(content_view);
     Hide();
   }
 
   DISALLOW_COPY_AND_ASSIGN(DockedBackgroundWidget);
 };
 
-DockedWindowLayoutManager* GetDockLayoutManager(aura::Window* window,
-                                                const gfx::Point& location) {
-  gfx::Rect near_location(location, gfx::Size());
-  aura::Window* dock = Shell::GetContainer(
-      wm::GetRootWindowMatching(near_location),
-      kShellWindowId_DockedContainer);
-  return static_cast<internal::DockedWindowLayoutManager*>(
-      dock->layout_manager());
-}
-
 // Returns true if a window is a popup or a transient child.
 bool IsPopupOrTransient(const aura::Window* window) {
   return (window->type() == aura::client::WINDOW_TYPE_POPUP ||
           window->transient_parent());
 }
 
 // Certain windows (minimized, hidden or popups) do not matter to docking.
 bool IsUsedByLayout(const aura::Window* window) {
   return (window->IsVisible() &&
           !wm::GetWindowState(window)->IsMinimized() &&
@@ skipping 965 matching lines @@
 void DockedWindowLayoutManager::OnKeyboardBoundsChanging(
     const gfx::Rect& keyboard_bounds) {
   // This bounds change will have caused a change to the Shelf which does not
   // propagate automatically to this class, so manually recalculate bounds.
   Relayout();
   UpdateDockBounds(DockedWindowLayoutManagerObserver::KEYBOARD_BOUNDS_CHANGING);
 }
 
 }  // namespace internal
 }  // namespace ash