[Android] Remove the "Always show" button for blocked popups if the setting is controlled by policy.

chrome/browser/ui/android/content_settings/popup_blocked_infobar_delegate.cc

 // Copyright 2013 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/android/content_settings/popup_blocked_infobar_delegate.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/infobars/infobar.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
+#include "chrome/common/content_settings.h"
 #include "chrome/common/content_settings_types.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 
 // static
-void PopupBlockedInfoBarDelegate::Create(InfoBarService* infobar_service,
+void PopupBlockedInfoBarDelegate::Create(content::WebContents* web_contents,
                                          int num_popups) {
+  const GURL& url = web_contents->GetURL();
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
   scoped_ptr<InfoBar> infobar(ConfirmInfoBarDelegate::CreateInfoBar(
       scoped_ptr<ConfirmInfoBarDelegate>(
-          new PopupBlockedInfoBarDelegate(num_popups))));
+          new PopupBlockedInfoBarDelegate(
+                num_popups, url, profile->GetHostContentSettingsMap()))));
 
+  InfoBarService* infobar_service =
+      InfoBarService::FromWebContents(web_contents);
   // See if there is an existing popup infobar already.
   // TODO(dfalcantara) When triggering more than one popup the infobar
   // will be shown once, then hide then be shown again.
   // This will be fixed once we have an in place replace infobar mechanism.
   for (size_t i = 0; i < infobar_service->infobar_count(); ++i) {
     InfoBar* existing_infobar = infobar_service->infobar_at(i);
     if (existing_infobar->delegate()->AsPopupBlockedInfoBarDelegate()) {
       infobar_service->ReplaceInfoBar(existing_infobar, infobar.Pass());
       return;
     }
   }
 
   infobar_service->AddInfoBar(infobar.Pass());
 }
 
 PopupBlockedInfoBarDelegate::~PopupBlockedInfoBarDelegate() {
 }
 
 int PopupBlockedInfoBarDelegate::GetIconID() const {
   return IDR_BLOCKED_POPUPS;
 }
 
 PopupBlockedInfoBarDelegate*
     PopupBlockedInfoBarDelegate::AsPopupBlockedInfoBarDelegate() {
   return this;
 }
 
-PopupBlockedInfoBarDelegate::PopupBlockedInfoBarDelegate(int num_popups)
-    : ConfirmInfoBarDelegate(),
-      num_popups_(num_popups) {
+PopupBlockedInfoBarDelegate::PopupBlockedInfoBarDelegate(
+    int num_popups,
+    const GURL& url,
+    HostContentSettingsMap* map)
+    : ConfirmInfoBarDelegate(), num_popups_(num_popups), url_(url), map_(map) {
+  content_settings::SettingInfo setting_info;
+  scoped_ptr<base::Value> setting(
+      map->GetWebsiteSetting(
+          url,
+          url,
+          CONTENT_SETTINGS_TYPE_POPUPS,
+          std::string(),
+          &setting_info));
+  can_show_popups_ =
+      setting_info.source != content_settings::SETTING_SOURCE_POLICY;
 }
 
 base::string16 PopupBlockedInfoBarDelegate::GetMessageText() const {
   return l10n_util::GetStringFUTF16Int(IDS_POPUPS_BLOCKED_INFOBAR_TEXT,
                                        num_popups_);
 }
 
 int PopupBlockedInfoBarDelegate::GetButtons() const {
+  if (!can_show_popups_)
+    return 0;
+
   return BUTTON_OK;
 }
 
 base::string16 PopupBlockedInfoBarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   return l10n_util::GetStringUTF16(IDS_POPUPS_BLOCKED_INFOBAR_BUTTON_SHOW);
 }
 
 bool PopupBlockedInfoBarDelegate::Accept() {
+  DCHECK(can_show_popups_);
+
   // Create exceptions.
-  const GURL& url = web_contents()->GetURL();
-  Profile* profile = Profile::FromBrowserContext(
-      web_contents()->GetBrowserContext());
-  profile->GetHostContentSettingsMap()->AddExceptionForURL(
-      url, url, CONTENT_SETTINGS_TYPE_POPUPS, CONTENT_SETTING_ALLOW);
+  map_->AddExceptionForURL(
+      url_, url_, CONTENT_SETTINGS_TYPE_POPUPS, CONTENT_SETTING_ALLOW);
 
   // Launch popups.
   PopupBlockerTabHelper* popup_blocker_helper =
       PopupBlockerTabHelper::FromWebContents(web_contents());
   DCHECK(popup_blocker_helper);
   PopupBlockerTabHelper::PopupIdMap blocked_popups =
       popup_blocker_helper->GetBlockedPopupRequests();
   for (PopupBlockerTabHelper::PopupIdMap::iterator it = blocked_popups.begin();
       it != blocked_popups.end(); ++it)
     popup_blocker_helper->ShowBlockedPopup(it->first);
 
   return true;
 }