Aura tooltips do not move on mouse move in case of many neighboring views with the same label

content/browser/renderer_host/render_widget_host_view_aura.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 424 matching lines @@
       last_swapped_software_frame_scale_factor_(1.f),
       paint_canvas_(NULL),
       synthetic_move_sent_(false),
       can_lock_compositor_(YES),
       cursor_visibility_state_in_renderer_(UNKNOWN),
       touch_editing_client_(NULL),
       delegated_frame_evictor_(new DelegatedFrameEvictor(this)),
       weak_ptr_factory_(this) {
   host_->SetView(this);
   window_observer_.reset(new WindowObserver(this));
-  aura::client::SetTooltipText(window_, &tooltip_);
+  aura::client::SetTooltipText(window_, &tooltip_, NULL);
   aura::client::SetActivationDelegate(window_, this);
   aura::client::SetActivationChangeObserver(window_, this);
   aura::client::SetFocusChangeObserver(window_, this);
   window_->set_layer_owner_delegate(this);
   gfx::Screen::GetScreenFor(window_)->AddObserver(this);
   ImageTransportFactory::GetInstance()->AddObserver(this);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, RenderWidgetHostView implementation:
@@ skipping 2401 matching lines @@
     DCHECK(popup_parent_host_view_->popup_child_host_view_ == NULL ||
            popup_parent_host_view_->popup_child_host_view_ == this);
     popup_parent_host_view_->popup_child_host_view_ = NULL;
   }
   if (popup_child_host_view_) {
     DCHECK(popup_child_host_view_->popup_parent_host_view_ == NULL ||
            popup_child_host_view_->popup_parent_host_view_ == this);
     popup_child_host_view_->popup_parent_host_view_ = NULL;
   }
   event_filter_for_popup_exit_.reset();
-  aura::client::SetTooltipText(window_, NULL);
+  aura::client::SetTooltipText(window_, NULL, NULL);
   gfx::Screen::GetScreenFor(window_)->RemoveObserver(this);
 
   // This call is usually no-op since |this| object is already removed from the
   // Aura root window and we don't have a way to get an input method object
   // associated with the window, but just in case.
   DetachFromInputMethod();
 
   if (resource_collection_.get())
     resource_collection_->SetClient(NULL);
 
@@ skipping 292 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content