Enlarge size of touch target for several location bar buttons without affecting visual layout.

chrome/browser/ui/views/location_bar/content_setting_image_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/location_bar/content_setting_image_view.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/ui/content_settings/content_setting_bubble_model.h"
 #include "chrome/browser/ui/content_settings/content_setting_image_model.h"
@@ skipping 40 matching lines @@
     LocationBarView* parent)
     : content_setting_image_model_(
           ContentSettingImageModel::CreateContentSettingImageModel(
               content_type)),
       bubble_widget_(NULL),
       parent_(parent),
       pause_animation_(false),
       text_size_(0),
       visible_text_size_(0) {
   SetHorizontalAlignment(ImageView::LEADING);
+  TouchableLocationBarView::Init(this);
 }
 
 ContentSettingImageView::~ContentSettingImageView() {
   if (bubble_widget_) {
     bubble_widget_->RemoveObserver(this);
     bubble_widget_ = NULL;
   }
 }
 
 void ContentSettingImageView::UpdateFromWebContents(WebContents* web_contents) {
@@ skipping 185 matching lines @@
     bubble_widget_->RemoveObserver(this);
     bubble_widget_ = NULL;
   }
   if (pause_animation_) {
     slide_animator_->Reset(
         1.0 - (visible_text_size_ * kAnimatingFraction) / text_size_);
     pause_animation_ = false;
     slide_animator_->Show();
   }
 }
+
+int ContentSettingImageView::GetBuiltInHorizontalPadding() const {
+  return GetBuiltInHorizontalPaddingImpl();
+}
+