Setting TestRunner's main window from BlinkTestRunner.

components/test_runner/test_interfaces.h

Index: components/test_runner/test_interfaces.h
diff --git a/components/test_runner/test_interfaces.h b/components/test_runner/test_interfaces.h
index 6b534a0c0395ef8a6a1e480ec36ef2e03ba093be..ff7fb48730541763a27813f1e6f45736a5eb0c39 100644
--- a/components/test_runner/test_interfaces.h
+++ b/components/test_runner/test_interfaces.h
@@ -33,7 +33,7 @@ class TestInterfaces {
   TestInterfaces();
   ~TestInterfaces();
 
-  void SetWebView(blink::WebView* web_view, WebTestProxyBase* proxy);
+  void SetMainView(blink::WebView* web_view);
   void SetDelegate(WebTestDelegate* delegate);
   void BindTo(blink::WebFrame* frame);
   void ResetTestHelperControllers();
@@ -59,6 +59,8 @@ class TestInterfaces {
   AppBannerClient* app_banner_client_;
 
   std::vector<WebTestProxyBase*> window_list_;
+  blink::WebView* main_view_;
+
   std::unique_ptr<MockWebThemeEngine> theme_engine_;
 
   DISALLOW_COPY_AND_ASSIGN(TestInterfaces);