[Master/Overview CL] Make PageScaleFactor work for oopif subframe.

third_party/WebKit/Source/core/loader/EmptyClients.h

Index: third_party/WebKit/Source/core/loader/EmptyClients.h
diff --git a/third_party/WebKit/Source/core/loader/EmptyClients.h b/third_party/WebKit/Source/core/loader/EmptyClients.h
index 0e3347e43b275b35970c5c3afe0dd84275d03559..d9ad97482bb7ebc70e2d95eead3a4954abf78763 100644
--- a/third_party/WebKit/Source/core/loader/EmptyClients.h
+++ b/third_party/WebKit/Source/core/loader/EmptyClients.h
@@ -200,10 +200,12 @@ class CORE_EXPORT EmptyChromeClient : public ChromeClient {
   void attachRootGraphicsLayer(GraphicsLayer*, LocalFrame* localRoot) override;
   void attachRootLayer(WebLayer*, LocalFrame* localRoot) override {}
 
-  void setEventListenerProperties(WebEventListenerClass,
+  void setEventListenerProperties(LocalFrame*,
+                                  WebEventListenerClass,
                                   WebEventListenerProperties) override {}
   WebEventListenerProperties eventListenerProperties(
-      WebEventListenerClass) const override {
+      LocalFrame*,
+      WebEventListenerClass eventClass) const override {
     return WebEventListenerProperties::Nothing;
   }
   void setHasScrollEventHandlers(bool) override {}