cros: Instant extended support for immersive fullscreen

chrome/browser/ui/views/frame/contents_container.h

 // Copyright 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_FRAME_CONTENTS_CONTAINER_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_CONTENTS_CONTAINER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 42 matching lines @@
   content::WebContents* overlay_web_contents() const {
     return overlay_web_contents_;
   }
 
   int overlay_height() const {
     return overlay_ ? overlay_->bounds().height() : 0;
   }
 
   // Sets the active top margin; the active WebView's y origin would be
   // positioned at this |margin|, causing the active WebView to be pushed down
-  // vertically by |margin| pixels in the |ContentsContainer|.
-  void SetActiveTopMargin(int margin);
+  // vertically by |margin| pixels in the |ContentsContainer|. Returns true
+  // if the margin changed and this view needs Layout().
+  bool SetActiveTopMargin(int margin);
+
+  // Sets a vertical offset of |margin| pixels for the |overlay_| content,
+  // similar to SetActiveTopMargin(). Returns true if the margin changed and
+  // this view needs Layout().
+  bool SetOverlayTopMargin(int margin);
 
   // Returns the bounds the overlay would be shown at.
   gfx::Rect GetOverlayBounds() const;
 
   // Returns true if overlay will occupy full height of content page based on
   // |overlay_height| and |overlay_height_units|.
   bool WillOverlayBeFullHeight(int overlay_height,
                                InstantSizeUnits overlay_height_units) const;
 
   // Returns true if |overlay_| is not NULL and it is occupying full height of
   // the content page.
   bool IsOverlayFullHeight() const;
 
- private:
   // Overridden from views::View:
   virtual void Layout() OVERRIDE;
   virtual std::string GetClassName() const OVERRIDE;
 
+  // Testing interface:
+  views::WebView* GetActiveWebViewForTest() { return active_; }
+  views::WebView* GetOverlayWebViewForTest() { return overlay_; }
+
+ private:
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   views::WebView* active_;
   views::WebView* overlay_;
   scoped_ptr<views::View> shadow_view_;
   content::WebContents* overlay_web_contents_;
   bool draw_drop_shadow_;
 
   // The margin between the top and the active view. This is used to make the
   // overlay overlap the bookmark bar on the new tab page.
   int active_top_margin_;
 
+  // The margin between the top of this view and the overlay view. Used to
+  // push down the instant extended suggestions during an immersive fullscreen
+  // reveal.
+  int overlay_top_margin_;
+
   // The desired height of the overlay and units.
   int overlay_height_;
   InstantSizeUnits overlay_height_units_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentsContainer);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_CONTENTS_CONTAINER_H_