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

chrome/browser/ui/fullscreen_exit_bubble.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/fullscreen_exit_bubble.h"
 
 #include "chrome/app/chrome_command_ids.h"
 #include "ui/gfx/rect.h"
 
 const double FullscreenExitBubble::kOpacity = 0.7;
 const int FullscreenExitBubble::kPaddingPx = 8;
 const int FullscreenExitBubble::kInitialDelayMs = 2300;
 const int FullscreenExitBubble::kIdleTimeMs = 2300;
 const int FullscreenExitBubble::kPositionCheckHz = 10;
 const int FullscreenExitBubble::kSlideInRegionHeightPx = 4;
 const int FullscreenExitBubble::kSlideInDurationMs = 350;
 const int FullscreenExitBubble::kSlideOutDurationMs = 700;
 
 FullscreenExitBubble::FullscreenExitBubble(
     CommandUpdater::CommandUpdaterDelegate* delegate)
     : delegate_(delegate) {
 }
 
 FullscreenExitBubble::~FullscreenExitBubble() {
 }
 
 void FullscreenExitBubble::StartWatchingMouse() {
   // Start the initial delay timer and begin watching the mouse.
-  initial_delay_.Start(FROM_HERE,
-                       base::TimeDelta::FromMilliseconds(kInitialDelayMs), this,
+  initial_delay_.Start(base::TimeDelta::FromMilliseconds(kInitialDelayMs), this,
                        &FullscreenExitBubble::CheckMousePosition);
   gfx::Point cursor_pos = GetCursorScreenPoint();
   last_mouse_pos_ = cursor_pos;
-  mouse_position_checker_.Start(FROM_HERE,
+  mouse_position_checker_.Start(
       base::TimeDelta::FromMilliseconds(1000 / kPositionCheckHz), this,
       &FullscreenExitBubble::CheckMousePosition);
 }
 
 void FullscreenExitBubble::CheckMousePosition() {
   // Desired behavior:
   //
   // +------------+-----------------------------+------------+
   // | _  _  _  _ | Exit full screen mode (F11) | _  _  _  _ |  Slide-in region
   // | _  _  _  _ \_____________________________/ _  _  _  _ |  Neutral region
@@ skipping 11 matching lines @@
   // * Otherwise, we do nothing, because the mouse is in the neutral region and
   //   either the popup is hidden or the mouse is not idle, so we don't want to
   //   change anything's state.
 
   gfx::Point cursor_pos = GetCursorScreenPoint();
 
   // Check to see whether the mouse is idle.
   if (cursor_pos != last_mouse_pos_) {
     // The mouse moved; reset the idle timer.
     idle_timeout_.Stop();  // If the timer isn't running, this is a no-op.
-    idle_timeout_.Start(FROM_HERE,
-                        base::TimeDelta::FromMilliseconds(kIdleTimeMs), this,
+    idle_timeout_.Start(base::TimeDelta::FromMilliseconds(kIdleTimeMs), this,
                         &FullscreenExitBubble::CheckMousePosition);
   }
   last_mouse_pos_ = cursor_pos;
 
   if (!IsWindowActive() ||
       !WindowContainsPoint(cursor_pos) ||
       (cursor_pos.y() >= GetPopupRect(true).bottom()) ||
       !idle_timeout_.IsRunning()) {
     // The cursor is offscreen, in the slide-out region, or idle.
     if (!initial_delay_.IsRunning()) {
       Hide();
     }
   } else if ((cursor_pos.y() < kSlideInRegionHeightPx) ||
              IsAnimating()) {
     // The cursor is not idle, and either it's in the slide-in region or it's in
     // the neutral region and we're sliding out.
     Show();
   }
 }
 
 void FullscreenExitBubble::ToggleFullscreen() {
   delegate_->ExecuteCommand(IDC_FULLSCREEN);
 }