Extract MonitorInfoProvider from WindowSizer.

chrome/browser/ui/window_sizer_aura.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/window_sizer.h"
 
-#include "base/compiler_specific.h"
-#include "ui/gfx/screen.h"
-
 // This doesn't matter for aura, which has different tiling.
 // static
 const int WindowSizer::kWindowTilePixels = 10;
 
-// An implementation of WindowSizer::MonitorInfoProvider. This assumes a single
-// monitor, which is currently the case.
-class DefaultMonitorInfoProvider : public WindowSizer::MonitorInfoProvider {
- public:
-  DefaultMonitorInfoProvider() {}
-
-  virtual gfx::Rect GetPrimaryMonitorWorkArea() const OVERRIDE {
-    return gfx::Screen::GetMonitorWorkAreaNearestPoint(gfx::Point());
-  }
-
-  virtual gfx::Rect GetPrimaryMonitorBounds() const OVERRIDE {
-    return gfx::Screen::GetMonitorAreaNearestPoint(gfx::Point());
-  }
-
-  virtual gfx::Rect GetMonitorWorkAreaMatching(
-      const gfx::Rect& match_rect) const OVERRIDE {
-    return gfx::Screen::GetMonitorWorkAreaNearestPoint(gfx::Point());
-  }
-
-  virtual void UpdateWorkAreas() OVERRIDE {
-    work_areas_.clear();
-    work_areas_.push_back(GetPrimaryMonitorBounds());
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DefaultMonitorInfoProvider);
-};
-
-// static
-WindowSizer::MonitorInfoProvider*
-WindowSizer::CreateDefaultMonitorInfoProvider() {
-  return new DefaultMonitorInfoProvider();
-}
-
 // static
 gfx::Point WindowSizer::GetDefaultPopupOrigin(const gfx::Size& size) {
   // TODO(oshima):This is used to control panel/popups, and this may not be
   // needed on aura environment as they must be controlled by WM.
   return gfx::Point();
 }