Immersive mode reveals the tabstrip/omnibox on top of web content

chrome/browser/ui/views/tabs/tab_strip.h

 // Copyright (c) 2012 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_VIEWS_TABS_TAB_STRIP_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 189 matching lines @@
   // NOTE: the drag and drop methods are invoked from FrameView. This is done
   // to allow for a drop region that extends outside the bounds of the TabStrip.
   virtual void OnDragEntered(const ui::DropTargetEvent& event) OVERRIDE;
   virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE;
   virtual void OnDragExited() OVERRIDE;
   virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
   virtual views::View* GetEventHandlerForPoint(
       const gfx::Point& point) OVERRIDE;
 
+  // Returns preferred height in immersive style.
+  static int GetImmersiveHeight();
+
  protected:
   // Horizontal gap between mini and non-mini-tabs.
   static const int kMiniToNonMiniGap;
 
   void set_ideal_bounds(int index, const gfx::Rect& bounds) {
     tabs_.set_ideal_bounds(index, bounds);
   }
 
   // Returns the number of mini-tabs.
   int GetMiniTabCount() const;
@@ skipping 371 matching lines @@
   // tab close comes from a touch device.
   base::OneShotTimer<TabStrip> resize_layout_timer_;
 
   // True if tabs are painted as rectangular light-bars.
   bool immersive_style_;
 
   DISALLOW_COPY_AND_ASSIGN(TabStrip);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_H_