Not moving a docked window when restoring a previously maximized window

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

Index: chrome/browser/ui/views/tabs/tab_drag_controller.h
diff --git a/chrome/browser/ui/views/tabs/tab_drag_controller.h b/chrome/browser/ui/views/tabs/tab_drag_controller.h
index dd8623338497a13a31a45fe3c6386870889d4d95..0f0cd77f01d5c8a18e8854abcba64980c492e68f 100644
--- a/chrome/browser/ui/views/tabs/tab_drag_controller.h
+++ b/chrome/browser/ui/views/tabs/tab_drag_controller.h
@@ -109,7 +109,7 @@ class TabDragController : public content::WebContentsDelegate,
   // |tab_strip|.
   // NOTE: this returns false if the TabDragController is in the process of
   // finishing the drag.
-  static bool IsAttachedTo(TabStrip* tab_strip);
+  static bool IsAttachedTo(const TabStrip* tab_strip);
 
   // Returns true if there is a drag underway.
   static bool IsActive();
@@ -474,6 +474,9 @@ class TabDragController : public content::WebContentsDelegate,
   // |point_in_screen|.
   gfx::Vector2d GetWindowOffset(const gfx::Point& point_in_screen);
 
+  // Returns true if |tab_strip| browser window is docked.
+  static bool IsDocked(const TabStrip* tab_strip);
+
   // Returns true if moving the mouse only changes the visible tabs.
   bool move_only() const {
     return (move_behavior_ == MOVE_VISIBILE_TABS) != 0;