ContentSettings API should not interact with <webview>

chrome/browser/chrome_content_browser_client.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/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 925 matching lines @@
 #if defined(OS_ANDROID)
   host->AddFilter(new EncryptedMediaMessageFilterAndroid());
 #endif
 
   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
       profile->IsOffTheRecord()));
 
   SendExtensionWebRequestStatusToHost(host);
 
   RendererContentSettingRules rules;
-  GetRendererContentSettingRules(profile->GetHostContentSettingsMap(), &rules);
+  if (host->IsGuest()) {
+    GuestView::GetDefaultContentSettingRules(&rules, profile->IsOffTheRecord());
+  } else {
+    GetRendererContentSettingRules(
+        profile->GetHostContentSettingsMap(), &rules);
+  }
   host->Send(new ChromeViewMsg_SetContentSettingRules(rules));
 }
 
 GURL ChromeContentBrowserClient::GetEffectiveURL(
     content::BrowserContext* browser_context, const GURL& url) {
   Profile* profile = Profile::FromBrowserContext(browser_context);
   if (!profile)
     return url;
 
   // If the input |url| should be assigned to the Instant renderer, make its
@@ skipping 1682 matching lines @@
   return IsExtensionOrSharedModuleWhitelisted(url, extension_set,
                                               allowed_file_handle_origins_) ||
          IsHostAllowedByCommandLine(url, extension_set,
                                     switches::kAllowNaClFileHandleAPI);
 #else
   return false;
 #endif
 }
 
 }  // namespace chrome