Timeline API fixes for Flutter

runtime/lib/timeline.cc

Index: runtime/lib/timeline.cc
diff --git a/runtime/lib/timeline.cc b/runtime/lib/timeline.cc
index ddc2f5a7367b1a1e9891ae87691610a4d6c1c037..df36a2517b8598e0bc2cdf3429274b8fe645f28c 100644
--- a/runtime/lib/timeline.cc
+++ b/runtime/lib/timeline.cc
@@ -53,7 +53,7 @@ DEFINE_NATIVE_ENTRY(Timeline_reportTaskEvent, 6) {
     return Object::null();
   }
 
-  TimelineEvent* event = isolate->GetDartStream()->StartEvent();
+  TimelineEvent* event = Timeline::GetDartStream()->StartEvent();
   if (event == NULL) {
     // Stream was turned off.
     return Object::null();
@@ -118,7 +118,7 @@ DEFINE_NATIVE_ENTRY(Timeline_reportCompleteEvent, 5) {
     return Object::null();
   }
 
-  TimelineEvent* event = isolate->GetDartStream()->StartEvent();
+  TimelineEvent* event = Timeline::GetDartStream()->StartEvent();
   if (event == NULL) {
     // Stream was turned off.
     return Object::null();
@@ -163,7 +163,7 @@ DEFINE_NATIVE_ENTRY(Timeline_reportInstantEvent, 4) {
     return Object::null();
   }
 
-  TimelineEvent* event = isolate->GetDartStream()->StartEvent();
+  TimelineEvent* event = Timeline::GetDartStream()->StartEvent();
   if (event == NULL) {
     // Stream was turned off.
     return Object::null();