Add ZoomLevelChanged and DidChangeScrollOffset to RenderViewObserver

chrome/renderer/autofill/autofill_agent.cc

Index: chrome/renderer/autofill/autofill_agent.cc
diff --git a/chrome/renderer/autofill/autofill_agent.cc b/chrome/renderer/autofill/autofill_agent.cc
index f250e4fd5ac2566f201cce9ab5b21b60a09b508a..0b28d452e6dd2af761b116f6b78eb7028373cc1c 100644
--- a/chrome/renderer/autofill/autofill_agent.cc
+++ b/chrome/renderer/autofill/autofill_agent.cc
@@ -155,6 +155,20 @@ void AutofillAgent::WillSubmitForm(WebFrame* frame,
   }
 }
 
+void AutofillAgent::ZoomLevelChanged() {
+  // Any time the zoom level changes, the page's content moves, so any Autofill
+  // popups should be hidden. This is only needed for the new Autofill UI
+  // because WebKit already knows to hide the old UI when this occurs.
+  Send(new AutofillHostMsg_HideAutofillPopup(routing_id()));
+}
+
+void AutofillAgent::DidChangeScrollOffset(WebKit::WebFrame*) {
+  // Any time the scroll offset changes, the page's content moves, so Autofill
+  // popups should be hidden. This is only needed for the new Autofill UI
+  // because WebKit already knows to hide the old UI when this occurs.
+  Send(new AutofillHostMsg_HideAutofillPopup(routing_id()));
+}
+
 bool AutofillAgent::InputElementClicked(const WebInputElement& element,
                                         bool was_focused,
                                         bool is_focused) {