Correct iOS build for latest Xcode beta.

ios/net/empty_nsurlcache.h

Index: ios/net/empty_nsurlcache.h
diff --git a/ios/net/empty_nsurlcache.h b/ios/net/empty_nsurlcache.h
new file mode 100644
index 0000000000000000000000000000000000000000..dc407e5084fe685b4a06b64baf13f838111876c6
--- /dev/null
+++ b/ios/net/empty_nsurlcache.h
@@ -0,0 +1,15 @@
+// Copyright 2015 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.
+
+#ifndef IOS_NET_EMPTY_NSURLCACHE_H_
+#define IOS_NET_EMPTY_NSURLCACHE_H_
+
+#import <Foundation/Foundation.h>
+
+@interface EmptyNSURLCache : NSURLCache

[droger, 2015/06/10 15:59:10]

Add a comment. I suggest something like:

// Dummy NSURLCache implementation that does not cache anything.

[justincohen, 2015/06/10 16:02:25]

Done.

+- (NSCachedURLResponse*)cachedResponseForRequest:

[droger, 2015/06/10 15:59:10]

Optional:
remove this. I don't know exactly what is the recommended style, but I think
that in most case we don't redeclare in headers the methods that are inherited.

[justincohen, 2015/06/10 16:02:25]

Done.

+        (NSURLRequest*)request;
+@end
+
+#endif  // IOS_NET_EMPTY_NSURLCACHE_H_