Add a stub implementation of the URLLoaderFactory for AppCache.

content/browser/url_loader_factory_getter.h

Index: content/browser/url_loader_factory_getter.h
diff --git a/content/browser/url_loader_factory_getter.h b/content/browser/url_loader_factory_getter.h
index 327629c63a58e2e7e5a084a3c98ab02d6849ae16..1b1fb72abee9fbe1aec4b580897f2e409e31a9f4 100644
--- a/content/browser/url_loader_factory_getter.h
+++ b/content/browser/url_loader_factory_getter.h
@@ -13,6 +13,9 @@
 
 namespace content {
 
+class ChromeAppCacheService;
+class StoragePartitionImpl;
+
 // Holds on to URLLoaderFactory for a given StoragePartition and allows code
 // running on the IO thread to access them. Note these are the factories used by
 // the browser process for frame requests.
@@ -22,8 +25,9 @@ class URLLoaderFactoryGetter
  public:
   URLLoaderFactoryGetter();
 
-  // Initializes this object on the UI thread.
-  void Initialize(mojom::URLLoaderFactoryPtr network_factory);
+  // Initializes this object on the UI thread. The |partition| is used to
+  // initialize the URLLoaderFactories for the network service and AppCache.
+  void Initialize(StoragePartitionImpl* partition);
 
   // Called on the IO thread to get the URLLoaderFactory to the network service.
   // The pointer shouldn't be cached.
@@ -35,18 +39,25 @@ class URLLoaderFactoryGetter
   CONTENT_EXPORT void SetNetworkFactoryForTesting(
       mojom::URLLoaderFactoryPtr test_factory);
 
+  // Called on the IO thread to get the URLLoaderFactory for AppCache. The
+  // pointer should not be cached.
+  mojom::URLLoaderFactoryPtr* GetAppCacheFactory();
+
  private:
   friend class base::DeleteHelper<URLLoaderFactoryGetter>;
   friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
 
   CONTENT_EXPORT ~URLLoaderFactoryGetter();
-  void InitializeOnIOThread(mojom::URLLoaderFactoryPtrInfo network_factory);
+  void InitializeOnIOThread(
+      mojom::URLLoaderFactoryPtrInfo network_factory,
+      scoped_refptr<ChromeAppCacheService> appcache_service);
   void SetTestNetworkFactoryOnIOThread(
       mojom::URLLoaderFactoryPtrInfo test_factory);
 
   // Only accessed on IO thread.
   mojom::URLLoaderFactoryPtr network_factory_;
   mojom::URLLoaderFactoryPtr test_factory_;
+  mojom::URLLoaderFactoryPtr appcache_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLLoaderFactoryGetter);
 };