Refactor the Android port to allow access to the chrome layer.

content/public/browser/web_contents_delegate.cc

Index: content/public/browser/web_contents_delegate.cc
diff --git a/content/public/browser/web_contents_delegate.cc b/content/public/browser/web_contents_delegate.cc
index 34732db1e640d6ff5f4a7776fa564bb5807b58e5..944752cb37125ba2913095d150d5f0a172cda2c8 100644
--- a/content/public/browser/web_contents_delegate.cc
+++ b/content/public/browser/web_contents_delegate.cc
@@ -135,6 +135,12 @@ bool WebContentsDelegate::ShouldCreateWebContents(
   return true;
 }
 
+#if defined(OS_ANDROID)
+bool WebContentsDelegate::ShouldOverrideLoading(const GURL& url) {
+  return false;
+}
+#endif
+
 JavaScriptDialogCreator* WebContentsDelegate::GetJavaScriptDialogCreator() {
   return NULL;
 }