Implement a ResourceThrottle for URL overriding in Chrome on Android.

content/public/browser/resource_request_info.h

Index: content/public/browser/resource_request_info.h
diff --git a/content/public/browser/resource_request_info.h b/content/public/browser/resource_request_info.h
index b6a73df1dc219a20e86a27af0268b6a316f57a1d..87cc764a0bb860619881b6396600a84dbb24a268 100644
--- a/content/public/browser/resource_request_info.h
+++ b/content/public/browser/resource_request_info.h
@@ -83,6 +83,10 @@ class ResourceRequestInfo {
   // is no upload, this will be 0.
   virtual uint64 GetUploadSize() const = 0;
 
+  // True if the request was initiated by a user action (like a tap to follow
+  // a link).
+  virtual bool HasUserGesture() const = 0;
+
   // Returns false if there is NOT an associated render view.
   virtual bool GetAssociatedRenderView(int* render_process_id,
                                        int* render_view_id) const = 0;