Modify --isolate-extensions to not isolate hosted apps.

chrome/browser/extensions/chrome_content_browser_client_extensions_part.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_CHROME_CONTENT_BROWSER_CLIENT_EXTENSIONS_PART_H_
 #define CHROME_BROWSER_EXTENSIONS_CHROME_CONTENT_BROWSER_CLIENT_EXTENSIONS_PART_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/chrome_content_browser_client_parts.h"
@@ skipping 10 matching lines @@
 class ChromeContentBrowserClientExtensionsPart
     : public ChromeContentBrowserClientParts {
  public:
   ChromeContentBrowserClientExtensionsPart();
   ~ChromeContentBrowserClientExtensionsPart() override;
 
   // Corresponds to the ChromeContentBrowserClient function of the same name.
   static GURL GetEffectiveURL(Profile* profile, const GURL& url);
   static bool ShouldUseProcessPerSite(Profile* profile,
                                       const GURL& effective_url);
+  static bool DoesSiteRequireDedicatedProcess(
+      content::BrowserContext* browser_context,
+      const GURL& effective_site_url);
   static bool ShouldLockToOrigin(content::BrowserContext* browser_context,
                                  const GURL& effective_site_url);
   static bool CanCommitURL(content::RenderProcessHost* process_host,
                            const GURL& url);
   static bool IsIllegalOrigin(content::ResourceContext* resource_context,
                               int child_process_id,
                               const GURL& origin);
   static bool IsSuitableHost(Profile* profile,
                              content::RenderProcessHost* process_host,
                              const GURL& site_url);
@@ skipping 46 matching lines @@
 
   scoped_ptr<BrowserPermissionsPolicyDelegate> permissions_policy_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClientExtensionsPart);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_CHROME_CONTENT_BROWSER_CLIENT_EXTENSIONS_PART_H_