Definition for new API method in WebKit::WebFrame.

webkit/mocks/mock_webframe.cc

Index: webkit/mocks/mock_webframe.cc
diff --git a/webkit/mocks/mock_webframe.cc b/webkit/mocks/mock_webframe.cc
index a230cc0264883b324526cf03ddb6f9af04683881..1423039813dd11faddb749b2c858da3d1b01f17b 100644
--- a/webkit/mocks/mock_webframe.cc
+++ b/webkit/mocks/mock_webframe.cc
@@ -235,6 +235,10 @@ bool MockWebFrame::willSuppressOpenerInNewFrame() const {
   return false;
 }
 
+bool MockWebFrame::pageDismissalEventBeingDispatched() const {
+  return false;
+}
+
 void MockWebFrame::replaceSelection(const WebString& text) {}
 
 void MockWebFrame::insertText(const WebString& text) {}