Add a global on/off switch for content settings and expose a toggle on the Website Settings options…

chrome/browser/android/banners/app_banner_settings_helper.cc

 // Copyright 2014 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/android/banners/app_banner_settings_helper.h"
 
 #include <algorithm>
 #include <string>
 
 #include "chrome/browser/content_settings/host_content_settings_map.h"
@@ skipping 22 matching lines @@
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
   if (profile->IsOffTheRecord() || web_contents->GetURL() != origin_url ||
       sanitized_package_name.empty()) {
     return false;
   }
 
   // Check if this combination has been previously disabled.
   HostContentSettingsMap* settings = profile->GetHostContentSettingsMap();
   if (!settings)
     return false;
-  scoped_ptr<base::Value> value(
+  scoped_ptr<base::Value> value =
       settings->GetWebsiteSetting(origin_url,
                                   origin_url,
                                   CONTENT_SETTINGS_TYPE_APP_BANNER,
                                   std::string(),
-                                  NULL));
+                                  NULL);
   if (!value.get()) {
     // We've never blocked a banner on this site.
     return true;
   } else if (value->IsType(base::Value::TYPE_DICTIONARY)) {
     // We expect to get a Dictionary back, where the keys are the package names.
     base::DictionaryValue* banner_dict =
         static_cast<base::DictionaryValue*>(value.get());
     bool is_allowed = false;
     if (banner_dict->GetBoolean(sanitized_package_name, &is_allowed)) {
       return is_allowed;
@@ skipping 23 matching lines @@
   std::string sanitized_package_name = SanitizePackageName(package_name);
   DCHECK(!sanitized_package_name.empty());
 
   Profile* profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
   HostContentSettingsMap* settings = profile->GetHostContentSettingsMap();
   ContentSettingsPattern pattern(ContentSettingsPattern::FromURL(origin_url));
   if (!settings || !pattern.IsValid())
     return;
 
-  scoped_ptr<base::Value> value(
+  scoped_ptr<base::Value> value =
       settings->GetWebsiteSetting(origin_url,
                                   origin_url,
                                   CONTENT_SETTINGS_TYPE_APP_BANNER,
                                   std::string(),
-                                  NULL));
+                                  NULL);
   base::DictionaryValue* banner_dict = NULL;
   if (value.get() && value->IsType(base::Value::TYPE_DICTIONARY)) {
     banner_dict = static_cast<base::DictionaryValue*>(value.release());
   } else {
     banner_dict = new base::DictionaryValue();
   }
 
   // Update the setting and save it back.
   banner_dict->SetBoolean(sanitized_package_name, false);
   settings->SetWebsiteSetting(pattern,
                               ContentSettingsPattern::Wildcard(),
                               CONTENT_SETTINGS_TYPE_APP_BANNER,
                               std::string(),
                               banner_dict);
 }