views: Fix a bunch of dchecks.

chrome/browser/ui/views/open_pdf_in_reader_bubble_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/open_pdf_in_reader_bubble_view.h"
 
 #include "chrome/browser/ui/pdf/open_pdf_in_reader_prompt_delegate.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/views/controls/button/text_button.h"
@@ skipping 46 matching lines @@
                   GridLayout::FILL, GridLayout::FILL);
   layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
 
   close_button_ = new views::NativeTextButton(this,
                                               model_->GetCancelButtonText());
   layout->StartRow(0, single_column_set_id);
   layout->AddView(close_button_);
 }
 
 void OpenPDFInReaderBubbleView::ButtonPressed(views::Button* sender,
-                                           const ui::Event& event) {
-  DCHECK(sender == close_button_);
+                                              const ui::Event& event) {
+  DCHECK_EQ(close_button_, sender);
 
   model_->Cancel();
   StartFade(false);
 }
 
 void OpenPDFInReaderBubbleView::LinkClicked(views::Link* source,
                                             int event_flags) {
-  DCHECK(source == open_in_reader_link_);
+  DCHECK_EQ(open_in_reader_link_, source);
 
   model_->Accept();
   StartFade(false);
 }