Avoid using ContentBrowserClient::IsIllegalOrigin in ResourceDispatcherHost.

chrome/browser/extensions/chrome_content_browser_client_extensions_part.h

Index: chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
diff --git a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
index 8982d5271a418fac9dfd9a473c7c5c9d4b32fb00..2b7650f67991fded8f8d479b1cc19cd6991b7f3c 100644
--- a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
+++ b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
@@ -16,6 +16,9 @@ class VpnServiceProxy;
 
 namespace extensions {
 
+class Extension;
+class InfoMap;
+
 // Implements the extensions portion of ChromeContentBrowserClient.
 class ChromeContentBrowserClientExtensionsPart
     : public ChromeContentBrowserClientParts {
@@ -34,9 +37,6 @@ class ChromeContentBrowserClientExtensionsPart
                                  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);
@@ -92,6 +92,22 @@ class ChromeContentBrowserClientExtensionsPart
       content::RenderProcessHost* process,
       Profile* profile) override;
 
+  // Helper functions to register and unregister an extension process. Invoked

[jam, 2016/08/02 17:01:46]

nit: since they're just static private methods, no need to declare them here.
just put them in an anonymous namespace in the cc file

[ananta, 2016/08/02 22:28:27]

Done.

+  // on the IO thread.
+  static void RegisterExtensionProcessHelper(
+      InfoMap* info_map,
+      const Extension* extension,
+      int process_id,
+      int site_instance_id,
+      const content::ResourceContext* context);
+
+  static void UnregisterExtensionProcessHelper(
+      InfoMap* info_map,
+      const Extension* extension,
+      int process_id,
+      int site_instance_id,
+      const content::ResourceContext* context);
+
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClientExtensionsPart);
 };