1 files changed, 55 insertions, 0 deletions
diff --git a/content/public/renderer/resource_fetcher.h b/content/public/renderer/resource_fetcher.h
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+++ b/content/public/renderer/resource_fetcher.h
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+// Copyright 2013 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 CONTENT_PUBLIC_RENDERER_RESOURCE_FETCHER_H_
+#define CONTENT_PUBLIC_RENDERER_RESOURCE_FETCHER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "content/common/content_export.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+
+class GURL;
+
+namespace base {
+class TimeDelta;
+}
+
+namespace blink {
+class WebFrame;
+class WebURLResponse;
+}
+
+namespace content {
+
+// Interface to download resources asynchronously.
+class CONTENT_EXPORT ResourceFetcher {
+ public:
+  virtual ~ResourceFetcher() {}
+
+  // This will be called asynchronously after the URL has been fetched,
+  // successfully or not.  If there is a failure, response and data will both be
+  // empty.  |response| and |data| are both valid until the URLFetcher instance
+  // is destroyed.
+  typedef base::Callback<void(const blink::WebURLResponse& response,
+                              const std::string& data)> Callback;
+
+  // Creates a ResourceFetcher and starts fetching the specified resource.
+  // Caller takes ownership of the returned object.  Deleting the
+  // ResourceFetcher will cancel the request, and the callback will never be
+  // run.
+  static ResourceFetcher* Create(const GURL& url,
+                                 blink::WebFrame* frame,
+                                 blink::WebURLRequest::TargetType target_type,
+                                 const Callback& callback);
+
+  // Sets how long to wait for the server to reply.  By default, there is no
+  // timeout.
+  virtual void SetTimeout(const base::TimeDelta& timeout) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_RENDERER_RESOURCE_FETCHER_H_