Correct immersive mode gestures under rotation

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

Index: chrome/browser/ui/views/frame/immersive_mode_controller_ash.h
diff --git a/chrome/browser/ui/views/frame/immersive_mode_controller_ash.h b/chrome/browser/ui/views/frame/immersive_mode_controller_ash.h
index c9d3f1997803377b6c8d52f093cbadb9ad87c274..fa448f24ca38ce640c991b43e31006e452695c84 100644
--- a/chrome/browser/ui/views/frame/immersive_mode_controller_ash.h
+++ b/chrome/browser/ui/views/frame/immersive_mode_controller_ash.h
@@ -19,6 +19,7 @@ class BrowserView;
 
 namespace aura {
 class Window;
+class RootWindow;
 }
 
 namespace gfx {
@@ -222,6 +223,9 @@ class ImmersiveModeControllerAsh : public ImmersiveModeController,
   // Native window for the browser, needed to clean up observers.
   aura::Window* native_window_;
 
+  // Native window for Top-Level Window, needed for registering as filter.
+  aura::RootWindow* root_window_;
+
   // Observer to disable immersive mode when window leaves the maximized state.
   class WindowObserver;
   scoped_ptr<WindowObserver> window_observer_;
@@ -238,6 +242,10 @@ class ImmersiveModeControllerAsh : public ImmersiveModeController,
   // following events.
   bool gesture_begun_;
 
+  // Inset size needed to guarantee that even under rotation the filter will see
+  // relevant events.
+  int bezel_inset_;
+
   DISALLOW_COPY_AND_ASSIGN(ImmersiveModeControllerAsh);
 };