1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_
6#define CHROME_BROWSER_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "base/gtest_prod_util.h"
11#include "chrome/browser/search/iframe_source.h"
12
13// Serves HTML for displaying suggestions using iframes, e.g.
14// chrome-search://suggestion/loader.html
15class MostVisitedIframeSource : public IframeSource {
16 public:
17  MostVisitedIframeSource();
18  virtual ~MostVisitedIframeSource();
19
20  // Number of Most Visited elements on the NTP for logging purposes.
21  static const int kNumMostVisited;
22  // Name of the histogram keeping track of Most Visited clicks.
23  static const char kMostVisitedHistogramName[];
24
25  // Overridden from IframeSource. Public for testing.
26  virtual void StartDataRequest(
27      const std::string& path_and_query,
28      int render_process_id,
29      int render_frame_id,
30      const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
31
32 protected:
33  // Overridden from IframeSource:
34  virtual std::string GetSource() const OVERRIDE;
35
36  virtual bool ServesPath(const std::string& path) const OVERRIDE;
37
38 private:
39  FRIEND_TEST_ALL_PREFIXES(MostVisitedIframeSourceTest,
40                           LogEndpointIsValidWithProvider);
41
42  DISALLOW_COPY_AND_ASSIGN(MostVisitedIframeSource);
43};
44
45#endif  // CHROME_BROWSER_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_
46