Revert "Currently, base/timer.cc calls PostTask with FROM_HERE as the Location,

chrome/browser/ui/views/tab_contents/tab_contents_view_views.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/tab_contents/tab_contents_view_views.h"
 
 #include <vector>
 
 #include "base/time.h"
 #include "chrome/browser/ui/views/sad_tab_view.h"
@@ skipping 367 matching lines @@
   // Let our delegate know that the mouse moved (useful for resetting status
   // bubble state).
   if (tab_contents_->delegate()) {
     tab_contents_->delegate()->ContentsMouseEvent(
         tab_contents_, gfx::Screen::GetCursorScreenPoint(), motion);
   }
 }
 
 void TabContentsViewViews::OnNativeTabContentsViewDraggingEnded() {
   if (close_tab_after_drag_ends_) {
-    close_tab_timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(0),
-                           this, &TabContentsViewViews::CloseTab);
+    close_tab_timer_.Start(base::TimeDelta::FromMilliseconds(0), this,
+                           &TabContentsViewViews::CloseTab);
   }
   tab_contents_->SystemDragEnded();
 }
 
 views::internal::NativeWidgetDelegate*
     TabContentsViewViews::AsNativeWidgetDelegate() {
   return this;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // TabContentsViewViews, views::Widget overrides:
 
 views::FocusManager* TabContentsViewViews::GetFocusManager() {
   views::FocusManager* focus_manager = Widget::GetFocusManager();
   if (focus_manager) {
     // If focus_manager_ is non NULL, it means we have been reparented, in which
     // case its value may not be valid anymore.
     focus_manager_ = NULL;
     return focus_manager;
   }
   // TODO(jcampan): we should DCHECK on focus_manager_, as it should not be
   // NULL.  We are not doing it as it breaks some unit-tests.  We should
   // probably have an empty TabContentView implementation for the unit-tests,
   // that would prevent that code being executed in the unit-test case.
   // DCHECK(focus_manager_);
   return focus_manager_;
 }