Generalize content::URLDataSource so that it can be used by the network service.

ios/web/public/url_data_source_ios.h

Index: ios/web/public/url_data_source_ios.h
diff --git a/ios/web/public/url_data_source_ios.h b/ios/web/public/url_data_source_ios.h
index 503cac11c3351159f9ea6438618fdc2a112fdf24..600ce721434e9fb392ff3152ec7007cc0d5328a6 100644
--- a/ios/web/public/url_data_source_ios.h
+++ b/ios/web/public/url_data_source_ios.h
@@ -10,14 +10,12 @@
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 
+class GURL;
+
 namespace base {
 class RefCountedMemory;
 }
 
-namespace net {
-class URLRequest;
-}
-
 namespace web {
 class BrowserState;
 
@@ -84,13 +82,7 @@ class URLDataSourceIOS {
   // access control.  Typically used in concert with
   // WebClient::GetAdditionalWebUISchemes() to permit additional WebUI scheme
   // support for an embedder.
-  virtual bool ShouldServiceRequest(const net::URLRequest* request) const;
-
-  // Called to inform the source that StartDataRequest() will be called soon.
-  // Gives the source an opportunity to rewrite |path| to incorporate extra
-  // information from the URLRequest prior to serving.
-  virtual void WillServiceRequest(const net::URLRequest* request,
-                                  std::string* path) const {}
+  virtual bool ShouldServiceRequest(const GURL& url) const;
 };
 
 }  // namespace web