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

trunk/src/chrome/browser/ui/libgtk2ui/gtk2_ui.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/libgtk2ui/gtk2_ui.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/environment.h"
@@ skipping 850 matching lines @@
     int color_id,
     const char* gradient_name) const {
   // We use two colors: the main color (passed in) and a lightened version of
   // that color (which is supposed to match the light gradient at the top of
   // several GTK+ themes, such as Ambiance, Clearlooks or Bluebird).
   ColorMap::const_iterator it = colors_.find(color_id);
   DCHECK(it != colors_.end());
   SkColor base = it->second;
 
   gfx::Canvas canvas(gfx::Size(kToolbarImageWidth, kToolbarImageHeight),
-      1.0f, true);
+      ui::SCALE_FACTOR_100P, true);
 
   int gradient_size;
   GdkColor* gradient_top_color = NULL;
   gtk_widget_style_get(GTK_WIDGET(fake_frame_),
                        "frame-gradient-size", &gradient_size,
                        gradient_name, &gradient_top_color,
                        NULL);
   if (gradient_size) {
     SkColor lighter = gradient_top_color ?
         GdkColorToSkColor(*gradient_top_color) :
@@ skipping 187 matching lines @@
 
 void Gtk2UI::ClearAllThemeData() {
   gtk_images_.clear();
 }
 
 }  // namespace libgtk2ui
 
 views::LinuxUI* BuildGtk2UI() {
   return new libgtk2ui::Gtk2UI;
 }