2 files changed, 6 insertions, 0 deletions
diff --git a/content/browser/webui/web_ui_impl.cc b/content/browser/webui/web_ui_impl.cc
index 1656b98..1050e61 100644
--- a/content/browser/webui/web_ui_impl.cc
+++ b/content/browser/webui/web_ui_impl.cc
@@ -9,6 +9,7 @@
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/browser/child_process_security_policy_impl.h"
+#include "content/browser/renderer_host/dip_util.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
@@ -116,6 +117,10 @@ WebContents* WebUIImpl::GetWebContents() const {
   return web_contents_;
 }
 
+float WebUIImpl::GetDeviceScale() const {
+  return GetDIPScaleFactor(web_contents_->GetRenderWidgetHostView());
+}
+
 bool WebUIImpl::ShouldHideFavicon() const {
   return hide_favicon_;
 }
diff --git a/content/browser/webui/web_ui_impl.h b/content/browser/webui/web_ui_impl.h
index d0dfcab..e8f9ea1 100644
--- a/content/browser/webui/web_ui_impl.h
+++ b/content/browser/webui/web_ui_impl.h
@@ -33,6 +33,7 @@ class CONTENT_EXPORT WebUIImpl : public content::WebUI,
   virtual content::WebContents* GetWebContents() const OVERRIDE;
   virtual content::WebUIController* GetController() const OVERRIDE;
   virtual void SetController(content::WebUIController* controller) OVERRIDE;
+  virtual float GetDeviceScale() const OVERRIDE;
   virtual bool ShouldHideFavicon() const OVERRIDE;
   virtual void HideFavicon() OVERRIDE;
   virtual bool ShouldFocusLocationBarByDefault() const OVERRIDE;