Remove TestWebContents override that doesn't override anything.

content/test/test_web_contents.h

Index: content/test/test_web_contents.h
diff --git a/content/test/test_web_contents.h b/content/test/test_web_contents.h
index e42abfef21aeb80b94fc07b610b768505ff73457..9afa72dc9a13c58fd003ef532f58be73deae7568 100644
--- a/content/test/test_web_contents.h
+++ b/content/test/test_web_contents.h
@@ -51,10 +51,6 @@ class TestWebContents : public WebContentsImpl, public WebContentsTester {
     return GetRenderManager()->cross_navigation_pending_;
   }
 
-  // Overrides WebContentsImpl::ShouldTransitionCrossSite so that we can test
-  // both alternatives without using command-line switches.
-  bool ShouldTransitionCrossSite() { return transition_cross_site; }
-
   // Prevent interaction with views.
   virtual bool CreateRenderViewForRenderManager(
       RenderViewHost* render_view_host,
@@ -67,9 +63,6 @@ class TestWebContents : public WebContentsImpl, public WebContentsTester {
   // TestWebContents. The caller owns the returned object.
   virtual WebContents* Clone() OVERRIDE;
 
-  // Set by individual tests.
-  bool transition_cross_site;
-
   // Allow mocking of the RenderViewHostDelegateView.
   virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE;
   void set_delegate_view(RenderViewHostDelegateView* view) {