Handle empty error pages in DidFinishDocumentLoad

components/test_runner/web_frame_test_proxy.h

Index: components/test_runner/web_frame_test_proxy.h
diff --git a/components/test_runner/web_frame_test_proxy.h b/components/test_runner/web_frame_test_proxy.h
index 8f0336167d8455c376e83d4c6bc6d851979b8367..87246b6e07da9927f63fd6f54da6edacda059809 100644
--- a/components/test_runner/web_frame_test_proxy.h
+++ b/components/test_runner/web_frame_test_proxy.h
@@ -110,9 +110,9 @@ class WebFrameTestProxy : public Base {
     Base::didChangeIcon(frame, icon_type);
   }
 
-  virtual void didFinishDocumentLoad(blink::WebLocalFrame* frame) {
+  virtual void didFinishDocumentLoad(blink::WebLocalFrame* frame, bool empty) {
     base_proxy_->DidFinishDocumentLoad(frame);
-    Base::didFinishDocumentLoad(frame);
+    Base::didFinishDocumentLoad(frame, empty);
   }
 
   virtual void didHandleOnloadEvents(blink::WebLocalFrame* frame) {
@@ -240,7 +240,6 @@ class WebFrameTestProxy : public Base {
   virtual void didFinishResourceLoad(blink::WebLocalFrame* frame,
                                      unsigned identifier) {
     base_proxy_->DidFinishResourceLoad(frame, identifier);
-    Base::didFinishResourceLoad(frame, identifier);
   }
 
   virtual blink::WebNavigationPolicy decidePolicyForNavigation(