content: Move constrained window code from TabContents to TabContentsWrapper

chrome/browser/ui/constrained_window_tab_helper.h

Index: chrome/browser/ui/constrained_window_tab_helper.h
diff --git a/chrome/browser/ui/constrained_window_tab_helper.h b/chrome/browser/ui/constrained_window_tab_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..dee809378bec4356ee6c15af60c7365bdc60d9fa
--- /dev/null
+++ b/chrome/browser/ui/constrained_window_tab_helper.h
@@ -0,0 +1,74 @@
+// Copyright (c) 2011 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_UI_CONSTRAINED_WINDOW_TAB_HELPER_H_
+#define CHROME_BROWSER_UI_CONSTRAINED_WINDOW_TAB_HELPER_H_
+#pragma once
+
+#include <deque>
+
+#include "content/browser/tab_contents/tab_contents_observer.h"
+
+class ConstrainedWindow;
+class ConstrainedWindowTabHelperDelegate;
+class TabContentsWrapper;
+
+// Per-tab class to manage constrained windows.
+class ConstrainedWindowTabHelper : public TabContentsObserver {
+ public:
+  explicit ConstrainedWindowTabHelper(TabContentsWrapper* tab_contents);
+  virtual ~ConstrainedWindowTabHelper();
+
+  ConstrainedWindowTabHelperDelegate* delegate() const { return delegate_; }
+  void set_delegate(ConstrainedWindowTabHelperDelegate* d) { delegate_ = d; }
+
+  // Adds the given window to the list of child windows. The window will notify
+  // via WillClose() when it is being destroyed.
+  void AddConstrainedDialog(ConstrainedWindow* window);
+
+  // Closes all constrained windows.
+  void CloseConstrainedWindows();
+
+  // Called when a ConstrainedWindow we own is about to be closed.
+  void WillClose(ConstrainedWindow* window);
+
+  // Blocks/unblocks interaction with renderer process.
+  void BlockTabContent(bool blocked);
+
+  // Returns the number of constrained windows in this tab.  Used by tests.
+  size_t constrained_window_count() { return child_windows_.size(); }
+
+  typedef std::deque<ConstrainedWindow*> ConstrainedWindowList;
+
+  // Return an iterator for the first constrained window in this tab contents.
+  ConstrainedWindowList::iterator constrained_window_begin() {
+    return child_windows_.begin();
+  }
+
+  // Return an iterator for the last constrained window in this tab contents.
+  ConstrainedWindowList::iterator constrained_window_end() {
+    return child_windows_.end();
+  }
+
+ private:
+  // Overridden from TabContentsObserver:
+  virtual void DidNavigateMainFramePostCommit(
+      const content::LoadCommittedDetails& details,
+      const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE;
+  virtual void DidGetIgnoredUIEvent() OVERRIDE;
+  virtual void TabContentsDestroyed(TabContents* tab) OVERRIDE;
+
+  // Our owning TabContentsWrapper.
+  TabContentsWrapper* wrapper_;
+
+  // Delegate for notifying our owner about stuff. Not owned by us.
+  ConstrainedWindowTabHelperDelegate* delegate_;
+
+  // All active constrained windows.
+  ConstrainedWindowList child_windows_;
+
+  DISALLOW_COPY_AND_ASSIGN(ConstrainedWindowTabHelper);
+};
+
+#endif  // CHROME_BROWSER_UI_CONSTRAINED_WINDOW_TAB_HELPER_H_