GetScaleFactorForNativeView should return scale factor in float

chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc

 // Copyright 2013 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/autofill/autofill_dialog_controller_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 1414 matching lines @@
 }
 
 gfx::Image AutofillDialogControllerImpl::GetGeneratedCardImage(
     const base::string16& card_number,
     const base::string16& name,
     const SkColor& gradient_top,
     const SkColor& gradient_bottom) {
   const int kCardWidthPx = 300;
   const int kCardHeightPx = 190;
   const gfx::Size size(kCardWidthPx, kCardHeightPx);
-  ui::ScaleFactor scale_factor = ui::GetScaleFactorForNativeView(
+  float scale_factor = ui::GetScaleFactorForNativeView(
       web_contents()->GetNativeView());
-  gfx::Canvas canvas(size, ui::GetImageScale(scale_factor), false);
+  gfx::Canvas canvas(size, scale_factor, false);
 
   gfx::Rect display_rect(size);
 
   skia::RefPtr<SkShader> shader = gfx::CreateGradientShader(
       0, size.height(), gradient_top, gradient_bottom);
   SkPaint paint;
   paint.setShader(shader.get());
   canvas.DrawRoundRect(display_rect, 8, paint);
 
   display_rect.Inset(20, 0, 0, 0);
@@ skipping 2648 matching lines @@
   view_->UpdateButtonStrip();
 }
 
 void AutofillDialogControllerImpl::FetchWalletCookie() {
   net::URLRequestContextGetter* request_context = profile_->GetRequestContext();
   signin_helper_.reset(new wallet::WalletSigninHelper(this, request_context));
   signin_helper_->StartWalletCookieValueFetch();
 }
 
 }  // namespace autofill