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

chrome/browser/ui/views/location_bar/chrome_to_mobile_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/chrome_to_mobile_view.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/browser_dialogs.h"
@@ skipping 10 matching lines @@
     : location_bar_view_(location_bar_view),
       command_updater_(command_updater) {
   set_id(VIEW_ID_CHROME_TO_MOBILE_BUTTON);
   set_accessibility_focusable(true);
   SetImage(
       ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(IDR_MOBILE));
   SetTooltipText(
       l10n_util::GetStringUTF16(IDS_CHROME_TO_MOBILE_BUBBLE_TOOLTIP));
   SetVisible(command_updater_->IsCommandEnabled(IDC_CHROME_TO_MOBILE_PAGE));
   command_updater_->AddCommandObserver(IDC_CHROME_TO_MOBILE_PAGE, this);
+  TouchableLocationBarView::Init(this);
 }
 
 ChromeToMobileView::~ChromeToMobileView() {
   command_updater_->RemoveCommandObserver(IDC_CHROME_TO_MOBILE_PAGE, this);
 }
 
 void ChromeToMobileView::EnabledStateChangedForCommand(int id, bool enabled) {
   DCHECK_EQ(id, IDC_CHROME_TO_MOBILE_PAGE);
   if (enabled != visible()) {
     SetVisible(enabled);
     location_bar_view_->Update(NULL);
   }
 }
 
+int ChromeToMobileView::GetBuiltInHorizontalPadding() const {
+  return GetBuiltInHorizontalPaddingImpl();
+}
+
 void ChromeToMobileView::GetAccessibleState(ui::AccessibleViewState* state) {
   state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_CHROME_TO_MOBILE);
   state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
 }
 
 bool ChromeToMobileView::GetTooltipText(const gfx::Point& p,
                                         string16* tooltip) const {
   // Don't show tooltip to distract user if ChromeToMobileBubbleView is showing.
   if (browser::IsChromeToMobileBubbleViewShowing())
     return false;
@@ skipping 12 matching lines @@
 }
 
 bool ChromeToMobileView::OnKeyPressed(const views::KeyEvent& event) {
   if (event.key_code() == ui::VKEY_SPACE ||
       event.key_code() == ui::VKEY_RETURN) {
     command_updater_->ExecuteCommand(IDC_CHROME_TO_MOBILE_PAGE);
     return true;
   }
   return false;
 }