Add exports needed for glue to build as a component.

webkit/plugins/ppapi/ppb_url_request_info_impl.h

Index: webkit/plugins/ppapi/ppb_url_request_info_impl.h
diff --git a/webkit/plugins/ppapi/ppb_url_request_info_impl.h b/webkit/plugins/ppapi/ppb_url_request_info_impl.h
index 65937c96762954430de6511276cb569a4f153adc..d9841f0fc745aafa024e5e0e0dcc2a1d66e5263f 100644
--- a/webkit/plugins/ppapi/ppb_url_request_info_impl.h
+++ b/webkit/plugins/ppapi/ppb_url_request_info_impl.h
@@ -8,6 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "ppapi/thunk/ppb_url_request_info_api.h"
 #include "ppapi/shared_impl/url_request_info_impl.h"
+#include "webkit/plugins/webkit_plugins_export.h"
 
 namespace WebKit {
 class WebFrame;
@@ -18,7 +19,8 @@ class WebURLRequest;
 namespace webkit {
 namespace ppapi {
 
-class PPB_URLRequestInfo_Impl : public ::ppapi::URLRequestInfoImpl {
+class WEBKIT_PLUGINS_EXPORT PPB_URLRequestInfo_Impl :
+    public ::ppapi::URLRequestInfoImpl {
  public:
   explicit PPB_URLRequestInfo_Impl(
       PP_Instance instance,