Revert 224473 "Remove dependency on ui::ScaleFactor from ui/gfx"

trunk/src/content/browser/renderer_host/render_widget_host_view_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 "content/browser/renderer_host/render_widget_host_view_win.h"
 
 #include <InputScope.h>
 #include <wtsapi32.h>
 #pragma comment(lib, "wtsapi32.lib")
 
@@ skipping 1392 matching lines @@
     DrawBackground(paint_dc.m_ps.rcPaint, &paint_dc);
     if (whiteout_start_time_.is_null())
       whiteout_start_time_ = TimeTicks::Now();
   }
 }
 
 void RenderWidgetHostViewWin::DrawBackground(const RECT& dirty_rect,
                                              CPaintDC* dc) {
   if (!background_.empty()) {
     gfx::Rect dirty_area(dirty_rect);
-    gfx::Canvas canvas(dirty_area.size(), 1.0f, true);
+    gfx::Canvas canvas(dirty_area.size(), ui::SCALE_FACTOR_100P, true);
     canvas.Translate(-dirty_area.OffsetFromOrigin());
 
     gfx::Rect dc_rect(dc->m_ps.rcPaint);
     // TODO(pkotwicz): Fix |background_| such that it is an ImageSkia.
     canvas.TileImageInt(gfx::ImageSkia::CreateFrom1xBitmap(background_),
                         0, 0, dc_rect.width(), dc_rect.height());
 
     skia::DrawToNativeContext(canvas.sk_canvas(), *dc, dirty_area.x(),
                               dirty_area.y(), NULL);
   } else {
@@ skipping 1757 matching lines @@
   return new RenderWidgetHostViewWin(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(
       WebKit::WebScreenInfo* results) {
   GetScreenInfoForWindow(0, results);
 }
 
 }  // namespace content