Converts Widget::SetOpacity from char to float

chrome/browser/ui/views/exclusive_access_bubble_views.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 "chrome/browser/ui/views/exclusive_access_bubble_views.h"
 
 #include <utility>
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 176 matching lines @@
   }
   view_->UpdateContent(exit_instruction_text, link_text);
 }
 
 views::View* ExclusiveAccessBubbleViews::GetBrowserRootView() const {
   return bubble_view_context_->GetBubbleAssociatedWidget()->GetRootView();
 }
 
 void ExclusiveAccessBubbleViews::AnimationProgressed(
     const gfx::Animation* animation) {
-  int opacity = animation_->CurrentValueBetween(0, 255);
+  float opacity = static_cast<float>(animation_->CurrentValueBetween(0.0, 1.0));
   if (opacity == 0) {
     popup_->Hide();
   } else {
     popup_->Show();
     popup_->SetOpacity(opacity);
   }
 }
 
 void ExclusiveAccessBubbleViews::AnimationEnded(
     const gfx::Animation* animation) {
@@ skipping 68 matching lines @@
 void ExclusiveAccessBubbleViews::OnWidgetVisibilityChanged(
     views::Widget* widget,
     bool visible) {
   UpdateMouseWatcher();
 }
 
 void ExclusiveAccessBubbleViews::LinkClicked(views::Link* link,
                                              int event_flags) {
   ExitExclusiveAccess();
 }