Rename classes related to top controls

third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h

 // Copyright 2016 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 TopDocumentRootScrollerController_h
 #define TopDocumentRootScrollerController_h
 
 #include "core/CoreExport.h"
 #include "core/page/scrolling/RootScrollerController.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class Element;
 class FrameHost;
 class GraphicsLayer;
 class RootFrameViewport;
 class ScrollStateCallback;
 class ViewportScrollCallback;
 
 // This class manages the the page level aspects of the root scroller.  That
 // is, given all the iframes on a page and their individual root scrollers,
 // this class will determine which ultimate Element should be used as the root
-// scroller and ensures that Element is used to scroll top controls and provide
-// overscroll effects.
+// scroller and ensures that Element is used to scroll browser controls and
+// provide overscroll effects.
 // TODO(bokan): This class is currently OOPIF unaware. crbug.com/642378.
 class CORE_EXPORT TopDocumentRootScrollerController
     : public GarbageCollected<TopDocumentRootScrollerController> {
  public:
   static TopDocumentRootScrollerController* create(FrameHost&);
 
   DECLARE_TRACE();
 
   // This class needs to be informed of changes to compositing so that it can
   // update the compositor when the effective root scroller changes.
   void didUpdateCompositing();
 
   // This method needs to be called to create a ViewportScrollCallback that
-  // will be used to apply viewport scrolling actions like top controls
+  // will be used to apply viewport scrolling actions like browser controls
   // movement and overscroll glow.
   void initializeViewportScrollCallback(RootFrameViewport&);
 
   // Returns true if the given ScrollStateCallback is the
   // ViewportScrollCallback managed by this class.
   // TODO(bokan): Temporarily needed to allow ScrollCustomization to
   // differentiate between real custom callback and the built-in viewport
   // apply scroll. crbug.com/623079.
   bool isViewportScrollCallback(const ScrollStateCallback*) const;
 
@@ skipping 17 matching lines @@
 
   // Should be called to ensure the correct element is currently set as the
   // global root scroller and that all appropriate state changes are made if
   // it changes.
   void recomputeGlobalRootScroller();
 
   Document* topDocument() const;
 
   void setNeedsCompositingInputsUpdateOnGlobalRootScroller();
 
-  // The apply-scroll callback that moves top controls and produces
+  // The apply-scroll callback that moves browser controls and produces
   // overscroll effects. This class makes sure this callback is set on the
   // appropriate root scroller element.
   Member<ViewportScrollCallback> m_viewportApplyScroll;
 
   // The page level root scroller. i.e. The actual element for which
-  // scrolling should move top controls and produce overscroll glow. Once an
+  // scrolling should move browser controls and produce overscroll glow. Once an
   // m_viewportApplyScroll has been created, it will always be set on this
   // Element.
   WeakMember<Element> m_globalRootScroller;
 
   WeakMember<FrameHost> m_frameHost;
 };
 
 }  // namespace blink
 
 #endif  // RootScrollerController_h