views: Fix a bunch of dchecks.

chrome/browser/ui/views/sad_tab_view.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/sad_tab_view.h"
 
 #include <string>
 
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 105 matching lines @@
         content::PAGE_TRANSITION_LINK, false);
     web_contents_->OpenURL(params);
   } else if (source == feedback_link_) {
     chrome::ShowFeedbackPage(
         browser::FindBrowserWithWebContents(web_contents_),
         l10n_util::GetStringUTF8(IDS_KILLED_TAB_FEEDBACK_MESSAGE),
         std::string(kCategoryTagCrash));
   }
 }
 
-void SadTabView::ButtonPressed(views::Button* source,
+void SadTabView::ButtonPressed(views::Button* sender,
                                const ui::Event& event) {
   DCHECK(web_contents_);
-  DCHECK(source == reload_button_);
+  DCHECK_EQ(reload_button_, sender);
   web_contents_->GetController().Reload(true);
 }
 
 void SadTabView::Layout() {
   // Specify the maximum message width explicitly.
   message_->SizeToFit(static_cast<int>(width() * kMessageSize));
   View::Layout();
 }
 
 void SadTabView::ViewHierarchyChanged(bool is_add,
@@ skipping 118 matching lines @@
 }
 
 views::Link* SadTabView::CreateLink(const string16& text) {
   views::Link* link = new views::Link(text);
   link->SetFont(base_font_.DeriveFont(kMessageFontSizeDelta));
   link->SetBackgroundColor(background()->get_color());
   link->SetEnabledColor(kTextColor);
   link->set_listener(this);
   return link;
 }