Remove dependency on ui::ScaleFactor from ui/gfx

chrome/browser/ui/app_list/search/common/url_icon_source.cc

Index: chrome/browser/ui/app_list/search/common/url_icon_source.cc
diff --git a/chrome/browser/ui/app_list/search/common/url_icon_source.cc b/chrome/browser/ui/app_list/search/common/url_icon_source.cc
index 443da12ce6f9f02e83a8f01240bad08b09454ee4..acb2d288161215d7f30c4116502206bba80ba149 100644
--- a/chrome/browser/ui/app_list/search/common/url_icon_source.cc
+++ b/chrome/browser/ui/app_list/search/common/url_icon_source.cc
@@ -47,17 +47,15 @@ void UrlIconSource::StartIconFetch() {
   icon_fetcher_->Start();
 }
 
-gfx::ImageSkiaRep UrlIconSource::GetImageForScale(
-    ui::ScaleFactor scale_factor) {
+gfx::ImageSkiaRep UrlIconSource::GetImageForScale(float scale) {
   if (!icon_fetch_attempted_)
     StartIconFetch();
 
   if (!icon_.isNull())
-    return icon_.GetRepresentation(scale_factor);
+    return icon_.GetRepresentation(scale);
 
   return ui::ResourceBundle::GetSharedInstance()
-      .GetImageSkiaNamed(default_icon_resource_id_)->GetRepresentation(
-          scale_factor);
+      .GetImageSkiaNamed(default_icon_resource_id_)->GetRepresentation(scale);
 }
 
 void UrlIconSource::OnURLFetchComplete(