Implement a ResourceThrottle for URL overriding in Chrome on Android.

net/url_request/url_request.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/url_request/url_request.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 460 matching lines @@
   RestartWithJob(URLRequestJobManager::GetInstance()->CreateJob(this));
 }
 
 void URLRequest::RestartWithJob(URLRequestJob *job) {
   DCHECK(job->request() == this);
   PrepareToRestart();
   StartJob(job);
 }
 
 void URLRequest::Cancel() {
-  DoCancel(ERR_ABORTED, SSLInfo());
+  DoCancel(URLRequestStatus(URLRequestStatus::CANCELED, ERR_ABORTED),
+           SSLInfo());
 }
 
 void URLRequest::CancelWithError(int error) {
-  DoCancel(error, SSLInfo());
+  DCHECK(error < 0);
+  DoCancel(URLRequestStatus(URLRequestStatus::CANCELED, error),
+           SSLInfo());
 }
 
 void URLRequest::CancelWithSSLError(int error, const SSLInfo& ssl_info) {
+  DCHECK(error < 0);
   // This should only be called on a started request.
   if (!is_pending_ || !job_ || job_->has_response_started()) {
     NOTREACHED();
     return;
   }
-  DoCancel(error, ssl_info);
+  DoCancel(URLRequestStatus(URLRequestStatus::CANCELED, error),
+           SSLInfo());
 }
 
-void URLRequest::DoCancel(int error, const SSLInfo& ssl_info) {
-  DCHECK(error < 0);
+void URLRequest::CancelWithHandledExternallyStatus() {
+  DoCancel(URLRequestStatus(URLRequestStatus::HANDLED_EXTERNALLY, OK),
+           SSLInfo());
+}
 
+void URLRequest::DoCancel(const URLRequestStatus& status,
+                          const SSLInfo& ssl_info) {
   // If the URL request already has an error status, then canceling is a no-op.
   // Plus, we don't want to change the error status once it has been set.
   if (status_.is_success()) {
-    status_.set_status(URLRequestStatus::CANCELED);
-    status_.set_error(error);
+    status_ = status;
     response_info_.ssl_info = ssl_info;
   }
 
   if (is_pending_ && job_)
     job_->Kill();
 
   // We need to notify about the end of this job here synchronously. The
   // Job sends an asynchronous notification but by the time this is processed,
   // our |context_| is NULL.
   NotifyRequestCompleted();
@@ skipping 407 matching lines @@
       new base::debug::StackTrace(NULL, 0);
   *stack_trace_copy = stack_trace;
   stack_trace_.reset(stack_trace_copy);
 }
 
 const base::debug::StackTrace* URLRequest::stack_trace() const {
   return stack_trace_.get();
 }
 
 }  // namespace net