views: Factor out SingleSplitView Observer into SingleSplitViewListener.

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/ui/views/frame/browser_view.h"
 
 #if defined(TOOLKIT_USES_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 1812 matching lines @@
   if (x) {
     const LocationIconView* location_icon_view =
         toolbar_->location_bar()->location_icon_view();
     gfx::Point icon_center(location_icon_view->GetImageBounds().CenterPoint());
     ConvertPointToView(location_icon_view, this, &icon_center);
     *x = icon_center.x();
   }
   return true;
 }
 
-bool BrowserView::SplitHandleMoved(views::SingleSplitView* view) {
-  for (int i = 0; i < view->child_count(); ++i)
-    view->child_at(i)->InvalidateLayout();
+bool BrowserView::SplitHandleMoved(views::SingleSplitView* sender) {
+  for (int i = 0; i < sender->child_count(); ++i)
+    sender->child_at(i)->InvalidateLayout();
   SchedulePaint();
   Layout();
   return false;
 }
 
 views::LayoutManager* BrowserView::CreateLayoutManager() const {
   return new BrowserViewLayout;
 }
 
 void BrowserView::InitTabStrip(TabStripModel* model) {
@@ skipping 771 matching lines @@
   views::View::ConvertPointToScreen(GetTabContentsContainerView(), &origin);
   gfx::Rect bounds;
   bounds.set_origin(origin);
 
   AvatarMenuBubbleView* bubble_view = new AvatarMenuBubbleView(browser_.get());
   // Bubble::Show() takes ownership of the view.
   Bubble::Show(this->GetWidget(), bounds,
                views::BubbleBorder::TOP_RIGHT,
                bubble_view, bubble_view);
 }