Hide close buttons of inactive stacked tabs by default

chrome/browser/ui/views/tabs/fake_base_tab_strip_controller.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/tabs/fake_base_tab_strip_controller.h"
 
 #include "chrome/browser/ui/views/tabs/tab_renderer_data.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 
 FakeBaseTabStripController::FakeBaseTabStripController()
@@ skipping 47 matching lines @@
 
 bool FakeBaseTabStripController::IsTabPinned(int index) const {
   return false;
 }
 
 bool FakeBaseTabStripController::IsNewTabPage(int index) const {
   return false;
 }
 
 void FakeBaseTabStripController::SelectTab(int index) {
+  if (!IsValidIndex(index))
+    return;
+  active_index_ = index;
 }
 
 void FakeBaseTabStripController::ExtendSelectionTo(int index) {
 }
 
 void FakeBaseTabStripController::ToggleSelected(int index) {
 }
 
 void FakeBaseTabStripController::AddSelectionFromAnchorTo(int index) {
 }
@@ skipping 46 matching lines @@
 
 void FakeBaseTabStripController::OnStartedDraggingTabs() {
 }
 
 void FakeBaseTabStripController::OnStoppedDraggingTabs() {
 }
 
 void FakeBaseTabStripController::CheckFileSupported(const GURL& url) {
   tab_strip_->FileSupported(url, true);
 }