Move HistoryEntry to separate file, make HistoryNode a subclass of HistoryEntry

history_controller.{h,cc} consists of 3 classes. Breaking it up was requested as a followup to http://src.chromium.org/viewvc/chrome?view=revision&revision=263767

BUG=

Review URL: https://codereview.chromium.org/243323004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@265132 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 107 insertions, 0 deletions

diff --git a/content/renderer/history_entry.h b/content/renderer/history_entry.h
new file mode 100644
index 0000000..f8cc14d
--- /dev/null
+++ b/content/renderer/history_entry.h
@@ -0,0 +1,107 @@
+// 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.
+
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
+ *     (http://www.torchmobile.com/)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CONTENT_RENDERER_HISTORY_ENTRY_H_
+#define CONTENT_RENDERER_HISTORY_ENTRY_H_
+
+#include "base/containers/hash_tables.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "third_party/WebKit/public/web/WebHistoryItem.h"
+
+namespace blink {
+class WebFrame;
+}
+
+namespace content {
+class RenderFrameImpl;
+class RenderViewImpl;
+
+const int kInvalidFrameRoutingID = -1;
+
+class HistoryEntry {
+ public:
+  class HistoryNode {
+   public:
+    HistoryNode(HistoryEntry* entry,
+                const blink::WebHistoryItem& item,
+                int64_t frame_id);
+    ~HistoryNode();
+
+    HistoryNode* AddChild(const blink::WebHistoryItem& item, int64_t frame_id);
+    HistoryNode* CloneAndReplace(HistoryEntry* new_entry,
+                                 const blink::WebHistoryItem& new_item,
+                                 bool clone_children_of_target,
+                                 RenderFrameImpl* target_frame,
+                                 RenderFrameImpl* current_frame);
+    blink::WebHistoryItem& item() { return item_; }
+    void set_item(const blink::WebHistoryItem& item) { item_ = item; }
+    std::vector<HistoryNode*>& children() const { return children_->get(); }
+    void RemoveChildren();
+
+   private:
+    HistoryEntry* entry_;
+    scoped_ptr<ScopedVector<HistoryNode> > children_;
+    blink::WebHistoryItem item_;
+  };
+
+  HistoryEntry(const blink::WebHistoryItem& root, int64_t frame_id);
+  ~HistoryEntry();
+
+  HistoryEntry* CloneAndReplace(const blink::WebHistoryItem& newItem,
+                                bool clone_children_of_target,
+                                RenderFrameImpl* target_frame,
+                                RenderViewImpl* render_view);
+
+  HistoryNode* GetHistoryNodeForFrame(RenderFrameImpl* frame);
+  blink::WebHistoryItem GetItemForFrame(RenderFrameImpl* frame);
+  const blink::WebHistoryItem& root() const { return root_->item(); }
+  HistoryNode* root_history_node() const { return root_.get(); }
+
+ private:
+  HistoryEntry();
+
+  scoped_ptr<HistoryNode> root_;
+
+  typedef base::hash_map<uint64_t, HistoryNode*> FramesToItems;
+  FramesToItems frames_to_items_;
+
+  typedef base::hash_map<std::string, HistoryNode*> UniqueNamesToItems;
+  UniqueNamesToItems unique_names_to_items_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_HISTORY_ENTRY_H_