Refactor ResourceHandler API.

content/browser/loader/throttling_resource_handler.h

Index: content/browser/loader/throttling_resource_handler.h
diff --git a/content/browser/loader/throttling_resource_handler.h b/content/browser/loader/throttling_resource_handler.h
index e608f84ac93b92f077e5189f70baa272a5fe6932..c089979ae5eae5dd808ccdf2413e711422dc6286 100644
--- a/content/browser/loader/throttling_resource_handler.h
+++ b/content/browser/loader/throttling_resource_handler.h
@@ -38,11 +38,15 @@ class CONTENT_EXPORT ThrottlingResourceHandler
   ~ThrottlingResourceHandler() override;
 
   // LayeredResourceHandler overrides:
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
-                           ResourceResponse* response,
-                           bool* defer) override;
-  bool OnResponseStarted(ResourceResponse* response, bool* defer) override;
-  bool OnWillStart(const GURL& url, bool* defer) override;
+  void OnRequestRedirected(
+      const net::RedirectInfo& redirect_info,
+      ResourceResponse* response,
+      std::unique_ptr<ResourceController> controller) override;
+  void OnResponseStarted(
+      ResourceResponse* response,
+      std::unique_ptr<ResourceController> controller) override;
+  void OnWillStart(const GURL& url,
+                   std::unique_ptr<ResourceController> controller) override;
 
   // ResourceThrottle::Delegate implementation:
   void Cancel() override;