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..07cb4365c1740ca996d8ee417eb91ab23f268f95 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 {
@@ -71,6 +74,16 @@ class ChromeContentBrowserClientExtensionsPart
   static std::unique_ptr<content::VpnServiceProxy> GetVpnServiceProxy(
       content::BrowserContext* browser_context);
 
+  // Updates the ResourceDispatcherHost instance with the extension origin
+  // access information.
+  static void AddExtension(const content::ResourceContext* context,
+                           const Extension* extension);
+
+  // Removes the extension origin access information from the
+  // ResourceDispatcherHost instance.
+  static void RemoveExtension(const content::ResourceContext* context,
+                              const std::string& extension_id);
+
  private:
   // ChromeContentBrowserClientParts:
   void RenderProcessWillLaunch(content::RenderProcessHost* host) override;
@@ -92,6 +105,22 @@ class ChromeContentBrowserClientExtensionsPart
       content::RenderProcessHost* process,
       Profile* profile) override;
 
+  // Helper functions to register and unregister an extension process. Invoked
+  // 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);
 };