Introduce NetworkDelegate's implementation in extensions.

extensions/shell/browser/shell_browser_context.cc

Index: extensions/shell/browser/shell_browser_context.cc
diff --git a/extensions/shell/browser/shell_browser_context.cc b/extensions/shell/browser/shell_browser_context.cc
index 33a08e3c99815994cc038c1c08ffe963f625cd6e..1939858a8412b8746f71302cbc82b6d55140b529 100644
--- a/extensions/shell/browser/shell_browser_context.cc
+++ b/extensions/shell/browser/shell_browser_context.cc
@@ -4,6 +4,9 @@
 
 #include "extensions/shell/browser/shell_browser_context.h"
 
+#include "content/public/browser/browser_thread.h"
+#include "extensions/browser/extension_network_delegate.h"
+#include "extensions/browser/extension_url_request_context_getter.h"
 #include "extensions/browser/guest_view/guest_view_manager.h"
 #include "extensions/shell/browser/shell_special_storage_policy.h"
 
@@ -27,6 +30,38 @@ storage::SpecialStoragePolicy* ShellBrowserContext::GetSpecialStoragePolicy() {
   return storage_policy_.get();
 }
 
+content::ShellURLRequestContextGetter*
+ShellBrowserContext::CreateURLRequestContextGetter(
+    content::ProtocolHandlerMap* protocol_handlers,
+    content::URLRequestInterceptorScopedVector request_interceptors) {
+  return new extensions::ExtensionURLRequestContextGetter(
+      ignore_certificate_errors(),
+      GetPath(),
+      content::BrowserThread::UnsafeGetMessageLoopForThread(
+          content::BrowserThread::IO),
+      content::BrowserThread::UnsafeGetMessageLoopForThread(
+          content::BrowserThread::FILE),
+      protocol_handlers,
+      request_interceptors.Pass(),
+      net_log());
+}
+
+net::URLRequestContextGetter* ShellBrowserContext::CreateRequestContext(
+      content::ProtocolHandlerMap* protocol_handlers,
+      content::URLRequestInterceptorScopedVector request_interceptors,
+      content::BrowserContext* browser_context,
+      InfoMap* extension_info_map) {
+  ExtensionNetworkDelegate* extension_network_delegate =
+      new ExtensionNetworkDelegate();
+  extension_network_delegate->set_extension_info_map(extension_info_map);
+  extension_network_delegate->set_browser_context(browser_context);
+
+  return content::ShellBrowserContext::CreateRequestContext(
+      protocol_handlers,
+      request_interceptors.Pass(),
+      extension_network_delegate);
+}
+
 void ShellBrowserContext::ProfileFunctionCallOnNonProfileBrowserContext1() {
   NOTREACHED();
 }