Allow content layer to pass ProtocolInterceptors when we create URLRequestContext

content/shell/browser/shell_url_request_context_getter.cc

Index: content/shell/browser/shell_url_request_context_getter.cc
diff --git a/content/shell/browser/shell_url_request_context_getter.cc b/content/shell/browser/shell_url_request_context_getter.cc
index bd5c9374328d26e24be3704afb8d69cfd88a2862..edf8325fe119305e0207bc7b456b30bdb300f934 100644
--- a/content/shell/browser/shell_url_request_context_getter.cc
+++ b/content/shell/browser/shell_url_request_context_getter.cc
@@ -64,12 +64,14 @@ ShellURLRequestContextGetter::ShellURLRequestContextGetter(
     base::MessageLoop* io_loop,
     base::MessageLoop* file_loop,
     ProtocolHandlerMap* protocol_handlers,
+    ProtocolHandlerScopedVector protocol_interceptors,
     net::NetLog* net_log)
     : ignore_certificate_errors_(ignore_certificate_errors),
       base_path_(base_path),
       io_loop_(io_loop),
       file_loop_(file_loop),
-      net_log_(net_log) {
+      net_log_(net_log),
+      protocol_interceptors_(protocol_interceptors.Pass()) {
   // Must first be created on the UI thread.
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
@@ -214,7 +216,19 @@ net::URLRequestContext* ShellURLRequestContextGetter::GetURLRequestContext() {
                 GetTaskRunnerWithShutdownBehavior(
                     base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)));
     DCHECK(set_protocol);
-    storage_->set_job_factory(job_factory.release());
+
+    // Setup iterators in the reverse order.
+    scoped_ptr<net::URLRequestJobFactory> top_job_factory =
+        job_factory.PassAs<net::URLRequestJobFactory>();
+    for (ProtocolHandlerScopedVector::reverse_iterator i =
+            protocol_interceptors_.rbegin();
+        i != protocol_interceptors_.rend(); ++i) {
+      top_job_factory.reset(new net::ProtocolInterceptJobFactory(
+          top_job_factory.Pass(), make_scoped_ptr(*i)));
+    }
+    protocol_interceptors_.weak_clear();
+
+    storage_->set_job_factory(top_job_factory.release());
   }
 
   return url_request_context_.get();