Forward MIME types to BrowserPlugin when a viewer is specified.

content/public/browser/resource_dispatcher_host_delegate.cc

Index: content/public/browser/resource_dispatcher_host_delegate.cc
diff --git a/content/public/browser/resource_dispatcher_host_delegate.cc b/content/public/browser/resource_dispatcher_host_delegate.cc
index ccd358f436f40c16cfe3b5dd8b092bfefee2ccad..7de20b49b6d161fd7952aac3101ce6d795b6b1ce 100644
--- a/content/public/browser/resource_dispatcher_host_delegate.cc
+++ b/content/public/browser/resource_dispatcher_host_delegate.cc
@@ -61,21 +61,20 @@ bool ResourceDispatcherHostDelegate::ShouldForceDownloadResource(
 }
 
 bool ResourceDispatcherHostDelegate::ShouldInterceptResourceAsStream(
+    net::URLRequest* request,
     content::ResourceContext* resource_context,
-    const GURL& url,
     const std::string& mime_type,
     GURL* origin,
-    std::string* target_id) {
+    std::string* payload) {
   return false;
 }
 
 void ResourceDispatcherHostDelegate::OnStreamCreated(
+    net::URLRequest* request,
     content::ResourceContext* resource_context,
     int render_process_id,
     int render_view_id,
-    const std::string& target_id,
-    scoped_ptr<StreamHandle> stream,
-    int64 expected_content_size) {
+    scoped_ptr<content::StreamHandle> stream) {
 }
 
 void ResourceDispatcherHostDelegate::OnResponseStarted(