ContentSettings API should not interact with <webview>

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index a95a29a9dc71e20dec0ee34be3e077d53594267f..566014c8b5cf25c8fcb0594af09eeda1d54b0e57 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -941,10 +941,44 @@ void ChromeContentBrowserClient::RenderProcessHostCreated(
       profile->IsOffTheRecord()));
 
   SendExtensionWebRequestStatusToHost(host);
+}
+
+// static
+void ChromeContentBrowserClient::SetContentSettingRules(
+    content::RenderViewHost* host) {
+  // <*view> guests should not be affected by ContentSettingRules.
+  if (host->GetProcess()->IsGuest())
+    return;
+
+  SiteInstance* site_instance = host->GetSiteInstance();
+  if (!site_instance)
+    return;
+
+  Profile* profile = Profile::FromBrowserContext(
+      host->GetProcess()->GetBrowserContext());
+  if (!profile)
+    return;
+
+  ExtensionService* extension_service =
+      extensions::ExtensionSystem::Get(profile)->extension_service();
+  if (!extension_service)
+    return;
+
+  // Extensions should not be affected by ContentSettingRules.
+  const Extension* extension = extension_service->extensions()->
+      GetHostedAppByURL(site_instance->GetSiteURL());
+  if (extension)
+    return;
 
   RendererContentSettingRules rules;
   GetRendererContentSettingRules(profile->GetHostContentSettingsMap(), &rules);
-  host->Send(new ChromeViewMsg_SetContentSettingRules(rules));
+  host->Send(new ChromeViewMsg_SetContentSettingRules(
+      host->GetRoutingID(), rules));
+}
+
+void ChromeContentBrowserClient::RenderViewReady(
+    content::RenderViewHost* host) {
+  SetContentSettingRules(host);
 }
 
 GURL ChromeContentBrowserClient::GetEffectiveURL(