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// Copyright 2014 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_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_
#define CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_
#include "base/basictypes.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "content/common/content_export.h"
namespace content {
class BrowserContext;
class NavigationURLLoaderDelegate;
class NavigationURLLoaderFactory;
class ResourceRequestBody;
struct CommonNavigationParams;
struct NavigationRequestInfo;
// PlzNavigate: The navigation logic's UI thread entry point into the resource
// loading stack. It exposes an interface to control the request prior to
// receiving the response. If the NavigationURLLoader is destroyed before
// OnResponseStarted is called, the request is aborted.
class CONTENT_EXPORT NavigationURLLoader {
public:
// Creates a NavigationURLLoader. The caller is responsible for ensuring that
// |delegate| outlives the loader. |request_body| must not be accessed on the
// UI thread after this point.
//
// TODO(davidben): When navigation is disentangled from the loader, the
// request parameters should not come in as a navigation-specific
// structure. Information like has_user_gesture and
// should_replace_current_entry shouldn't be needed at this layer.
static scoped_ptr<NavigationURLLoader> Create(
BrowserContext* browser_context,
int64 frame_tree_node_id,
const CommonNavigationParams& common_params,
scoped_ptr<NavigationRequestInfo> request_info,
ResourceRequestBody* request_body,
NavigationURLLoaderDelegate* delegate);
// For testing purposes; sets the factory for use in testing.
static void SetFactoryForTesting(NavigationURLLoaderFactory* factory);
virtual ~NavigationURLLoader() {}
// Called in response to OnRequestRedirected to continue processing the
// request.
virtual void FollowRedirect() = 0;
protected:
NavigationURLLoader() {}
private:
DISALLOW_COPY_AND_ASSIGN(NavigationURLLoader);
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_
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