Upstream oodles of Chrome for Android code into Chromium.

chrome/browser/android/history_report/data_observer.h

Index: chrome/browser/android/history_report/data_observer.h
diff --git a/chrome/browser/android/history_report/data_observer.h b/chrome/browser/android/history_report/data_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..37863357dce440c12f86e2453aff67c323696349
--- /dev/null
+++ b/chrome/browser/android/history_report/data_observer.h
@@ -0,0 +1,96 @@
+// 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 CHROME_BROWSER_ANDROID_HISTORY_REPORT_DATA_OBSERVER_H_
+#define CHROME_BROWSER_ANDROID_HISTORY_REPORT_DATA_OBSERVER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/time/time.h"
+#include "components/bookmarks/browser/bookmark_model_observer.h"
+#include "components/history/core/browser/history_service_observer.h"
+#include "components/history/core/browser/history_types.h"
+#include "components/history/core/browser/url_row.h"
+
+namespace history {
+
+class HistoryService;
+}
+
+namespace history_report {
+
+class DeltaFileService;
+class UsageReportsBufferService;
+
+// Observes history data for changes and updates delta file accordingly.
+class DataObserver : public bookmarks::BookmarkModelObserver,
+                     public history::HistoryServiceObserver {
+ public:
+  DataObserver(base::Callback<void(void)> data_changed_callback,
+               base::Callback<void(void)> data_cleared_callback,
+               base::Callback<void(void)> stop_reporting_callback,
+               DeltaFileService* delta_file_service,
+               UsageReportsBufferService* usage_reports_buffer_service,
+               bookmarks::BookmarkModel* bookmark_model,
+               history::HistoryService* history_service);
+  ~DataObserver() override;
+
+  // BookmarkModelObserver implementation.
+  void BookmarkModelLoaded(bookmarks::BookmarkModel* model,
+                           bool ids_reassigned) override;
+  void BookmarkModelBeingDeleted(bookmarks::BookmarkModel* model) override;
+  void BookmarkNodeMoved(bookmarks::BookmarkModel* model,
+                         const bookmarks::BookmarkNode* old_parent,
+                         int old_index,
+                         const bookmarks::BookmarkNode* new_parent,
+                         int new_index) override;
+  void BookmarkNodeAdded(bookmarks::BookmarkModel* model,
+                         const bookmarks::BookmarkNode* parent,
+                         int index) override;
+  void BookmarkNodeRemoved(bookmarks::BookmarkModel* model,
+                           const bookmarks::BookmarkNode* parent,
+                           int old_index,
+                           const bookmarks::BookmarkNode* node,
+                           const std::set<GURL>& removed_urls) override;
+  void BookmarkAllUserNodesRemoved(
+      bookmarks::BookmarkModel* model,
+      const std::set<GURL>& removed_urls) override;
+  void BookmarkNodeChanged(bookmarks::BookmarkModel* model,
+                           const bookmarks::BookmarkNode* node) override;
+  void BookmarkNodeFaviconChanged(bookmarks::BookmarkModel* model,
+                                  const bookmarks::BookmarkNode* node) override;
+  void BookmarkNodeChildrenReordered(
+      bookmarks::BookmarkModel* model,
+      const bookmarks::BookmarkNode* node) override;
+
+  // HistoryServiceObserver implementation.
+  void OnURLVisited(history::HistoryService* history_service,
+                    ui::PageTransition transition,
+                    const history::URLRow& row,
+                    const history::RedirectList& redirects,
+                    base::Time visit_time) override;
+  void OnURLsModified(history::HistoryService* history_service,
+                      const history::URLRows& changed_urls) override;
+  void OnURLsDeleted(history::HistoryService* history_service,
+                     bool all_history,
+                     bool expired,
+                     const history::URLRows& deleted_rows,
+                     const std::set<GURL>& favicon_urls) override;
+
+ private:
+  void DeleteBookmarks(const std::set<GURL>& removed_urls);
+
+  base::Callback<void(void)> data_changed_callback_;
+  base::Callback<void(void)> data_cleared_callback_;
+  base::Callback<void(void)> stop_reporting_callback_;
+  DeltaFileService* delta_file_service_;
+  UsageReportsBufferService* usage_reports_buffer_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(DataObserver);
+};
+
+}  // namespace history_report
+
+#endif  // CHROME_BROWSER_ANDROID_HISTORY_REPORT_DATA_OBSERVER_H_