Remove Pepper URLLoader from resource tracker early.

ppapi/shared_impl/resource.cc

Index: ppapi/shared_impl/resource.cc
diff --git a/ppapi/shared_impl/resource.cc b/ppapi/shared_impl/resource.cc
index f1db8dee48d72011618e88b729ea61860ffb6e7e..2c409618c006aec83b4d7c196c23df067b2d3737 100644
--- a/ppapi/shared_impl/resource.cc
+++ b/ppapi/shared_impl/resource.cc
@@ -45,7 +45,7 @@ Resource::Resource(Untracked) {
 }
 
 Resource::~Resource() {
-  PpapiGlobals::Get()->GetResourceTracker()->RemoveResource(this);
+  RemoveFromResourceTracker();
 }
 
 PP_Resource Resource::GetReference() {
@@ -79,6 +79,10 @@ void Resource::Log(PP_LogLevel level, const std::string& message) {
                                      message);
 }
 
+void Resource::RemoveFromResourceTracker() {
+  PpapiGlobals::Get()->GetResourceTracker()->RemoveResource(this);
+}
+
 #define DEFINE_TYPE_GETTER(RESOURCE) \
   thunk::RESOURCE* Resource::As##RESOURCE() { return NULL; }
 FOR_ALL_PPAPI_RESOURCE_APIS(DEFINE_TYPE_GETTER)