Fixed Issue 141873. Crash when BrowserActionButton get disabled or hidden.

chrome/browser/ui/views/browser_action_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/browser_action_view.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/api/commands/command_service.h"
 #include "chrome/browser/extensions/api/commands/command_service_factory.h"
 #include "chrome/browser/extensions/extension_context_menu_model.h"
@@ skipping 44 matching lines @@
 BrowserActionView::BrowserActionView(const Extension* extension,
                                      Browser* browser,
                                      BrowserActionView::Delegate* delegate)
     : browser_(browser),
       delegate_(delegate),
       button_(NULL),
       extension_(extension) {
 }
 
 BrowserActionView::~BrowserActionView() {
+  button_->Destroy();
 }
 
 gfx::Canvas* BrowserActionView::GetIconWithBadge() {
   int tab_id = delegate_->GetCurrentTabId();
 
   SkBitmap icon =
       *button_->extension()->browser_action()->GetIcon(tab_id).ToSkBitmap();
 
   // Dim the icon if our button is disabled.
   if (!button_->IsEnabled(tab_id))
@@ skipping 17 matching lines @@
   // button's preferred size, we use IconHeight(), since that's how big the
   // button should be regardless of what it's displaying.
   gfx::Point offset = delegate_->GetViewContentOffset();
   button_->SetBounds(offset.x(), offset.y(), width() - offset.x(),
                      BrowserActionsContainer::IconHeight());
 }
 
 void BrowserActionView::ViewHierarchyChanged(bool is_add,
                                              View* parent,
                                              View* child) {
-  if (is_add && (child == this)) {
+  if (is_add && (child == this) && (GetWidget() != NULL) && (button_ == NULL)) {
     button_ = new BrowserActionButton(extension_, browser_, delegate_);
     button_->set_drag_controller(delegate_);
-
+    button_->set_owned_by_client();
     AddChildView(button_);
     button_->UpdateState();
   }
 }
 
 void BrowserActionView::GetAccessibleState(ui::AccessibleViewState* state) {
   state->name = l10n_util::GetStringUTF16(
       IDS_ACCNAME_EXTENSIONS_BROWSER_ACTION);
   state->role = ui::AccessibilityTypes::ROLE_GROUPING;
 }
@@ skipping 329 matching lines @@
 
   extensions::Command browser_action_command;
   if (!only_if_active || !command_service->GetBrowserActionCommand(
           extension_->id(),
           extensions::CommandService::ACTIVE_ONLY,
           &browser_action_command,
           NULL)) {
     GetFocusManager()->UnregisterAccelerator(*keybinding_.get(), this);
   }
 }