Use process-per-app-instance for hosted apps without background permission.

content/browser/site_instance_unittest.cc

 // Copyright (c) 2011 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 "base/compiler_specific.h"
 #include "base/stl_util-inl.h"
 #include "base/string16.h"
 #include "chrome/test/testing_profile.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/browsing_instance.h"
@@ skipping 24 matching lines @@
     return url.SchemeIs(chrome::kChromeUIScheme);
   }
 };
 
 class SiteInstanceTestBrowserClient : public content::MockContentBrowserClient {
  public:
   virtual content::WebUIFactory* GetWebUIFactory() OVERRIDE {
     return &factory_;
   }
 
+  virtual bool ShouldUseProcessPerSite(Profile* profile,
+                                       const GURL& url) OVERRIDE {
+    return false;
+  }
+
   virtual bool IsURLSameAsAnySiteInstance(const GURL& url) OVERRIDE {
     return url == GURL(kSameAsAnyInstanceURL) ||
            url == GURL(chrome::kAboutCrashURL);
   }
 
   virtual GURL GetEffectiveURL(Profile* profile, const GURL& url) OVERRIDE {
     return url;
   }
 
  private:
@@ skipping 518 matching lines @@
       GURL("chrome-extension://baz/bar")));
   EXPECT_EQ(s5a, s5b);
 
   // The derived profiles with the different sites.
   scoped_refptr<SiteInstance> s6a(instance1->GetSiteInstanceForURL(
       GURL("chrome-extension://baz/bar")));
   scoped_refptr<SiteInstance> s6b(instance3->GetSiteInstanceForURL(
       GURL("chrome-extension://foo/boo")));
   EXPECT_NE(s6a, s6b);
 }