Add StoragePartition's ProtocolHandlers at URLRequestContext construction time.

chrome/browser/profiles/profile.h

Index: chrome/browser/profiles/profile.h
diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index 47f1bb66d57fa4449b292d4d7de7e7d14184717c..bb8209e16a263109e9f79edd5c467033d0c802da 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -225,15 +225,28 @@ class Profile : public content::BrowserContext {
 
   // Returns the main request context.
   virtual net::URLRequestContextGetter* GetRequestContext() = 0;
+  virtual net::URLRequestContextGetter* CreateRequestContext(
+      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+          blob_protocol_handler,
+      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+          file_system_protocol_handler,
+      scoped_ptr<net::URLRequestJobFactory::Interceptor>
+          developer_protocol_handler) = 0;
 
   // Returns the request context used for extension-related requests.  This
   // is only used for a separate cookie store currently.
   virtual net::URLRequestContextGetter* GetRequestContextForExtensions() = 0;
 
   // Returns the request context used within |partition_id|.
-  virtual net::URLRequestContextGetter* GetRequestContextForStoragePartition(
+  virtual net::URLRequestContextGetter* CreateRequestContextForStoragePartition(
       const FilePath& partition_path,
-      bool in_memory) = 0;
+      bool in_memory,
+      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+          blob_protocol_handler,
+      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+          file_system_protocol_handler,
+      scoped_ptr<net::URLRequestJobFactory::Interceptor>
+          developer_protocol_handler) = 0;
 
   // Returns the SSLConfigService for this profile.
   virtual net::SSLConfigService* GetSSLConfigService() = 0;