Enable hidpi on Linux, refactor a bit on Windows to share

chrome/browser/ui/views/frame/browser_desktop_window_tree_host_win.cc

 // Copyright (c) 2012 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/views/frame/browser_desktop_window_tree_host_win.h"
 
 #include <dwmapi.h>
 
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 #include "chrome/browser/ui/views/frame/browser_frame_common_win.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/frame/browser_window_property_manager_win.h"
 #include "chrome/browser/ui/views/frame/system_menu_insertion_delegate_win.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 #include "chrome/browser/ui/views/theme_image_mapper.h"
 #include "ui/base/theme_provider.h"
-#include "ui/gfx/win/dpi.h"
+#include "ui/gfx/dpi.h"
 #include "ui/views/controls/menu/native_menu_win.h"
 
 #pragma comment(lib, "dwmapi.lib")
 
 namespace {
 
 const int kClientEdgeThickness = 3;
 // We need to offset the DWMFrame into the toolbar so that the blackness
 // doesn't show up on our rounded corners.
 const int kDWMFrameTopOffset = 3;
@@ skipping 273 matching lines @@
       margins.cxLeftWidth = kClientEdgeThickness + 1;
       margins.cxRightWidth = kClientEdgeThickness + 1;
       margins.cyBottomHeight = kClientEdgeThickness + 1;
       margins.cyTopHeight = kClientEdgeThickness + 1;
     }
     // In maximized mode, we only have a titlebar strip of glass, no side/bottom
     // borders.
     if (!browser_view_->IsFullscreen()) {
       gfx::Rect tabstrip_bounds(
           browser_frame_->GetBoundsForTabStrip(browser_view_->tabstrip()));
-      tabstrip_bounds = gfx::win::DIPToScreenRect(tabstrip_bounds);
+      tabstrip_bounds = gfx::DIPToScreenRect(tabstrip_bounds);
       margins.cyTopHeight = tabstrip_bounds.bottom() + kDWMFrameTopOffset;
     }
   }
   return margins;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserDesktopWindowTreeHost, public:
 
 // static
 BrowserDesktopWindowTreeHost*
     BrowserDesktopWindowTreeHost::CreateBrowserDesktopWindowTreeHost(
         views::internal::NativeWidgetDelegate* native_widget_delegate,
         views::DesktopNativeWidgetAura* desktop_native_widget_aura,
         BrowserView* browser_view,
         BrowserFrame* browser_frame) {
   return new BrowserDesktopWindowTreeHostWin(native_widget_delegate,
                                              desktop_native_widget_aura,
                                              browser_view,
                                              browser_frame);
 }