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

trunk/src/chrome/browser/ui/gtk/panels/panel_gtk.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/gtk/panels/panel_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <X11/XF86keysym.h>
 
@@ skipping 126 matching lines @@
       const AcceleratorMapping& entry = kAcceleratorMap[i];
       ui::Accelerator accelerator = ui::AcceleratorForGdkKeyCodeAndModifier(
           entry.keyval, entry.modifier_type);
       accelerator_table[accelerator] = entry.command_id;
     }
   }
   return accelerator_table;
 }
 
 gfx::Image CreateImageForColor(SkColor color) {
-  gfx::Canvas canvas(gfx::Size(1, 1), 1.0f, true);
+  gfx::Canvas canvas(gfx::Size(1, 1), ui::SCALE_FACTOR_100P, true);
   canvas.DrawColor(color);
   return gfx::Image(gfx::ImageSkia(canvas.ExtractImageRep()));
 }
 
 const gfx::Image GetActiveBackgroundDefaultImage() {
   CR_DEFINE_STATIC_LOCAL(gfx::Image, image, ());
   if (image.IsEmpty())
     image = CreateImageForColor(kActiveBackgroundDefaultColor);
   return image;
 }
@@ skipping 1088 matching lines @@
 }
 
 panel::CornerStyle GtkNativePanelTesting::GetWindowCornerStyle() const {
   return panel_gtk_->corner_style_;
 }
 
 bool GtkNativePanelTesting::EnsureApplicationRunOnForeground() {
   // Not needed on GTK.
   return true;
 }