Timeline API fixes for Flutter

runtime/vm/flow_graph_type_propagator.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/flow_graph_type_propagator.h"
 
 #include "vm/cha.h"
 #include "vm/bit_vector.h"
 #include "vm/il_printer.h"
 #include "vm/regexp_assembler.h"
+#include "vm/timeline.h"
 
 namespace dart {
 
 DEFINE_FLAG(bool, trace_type_propagation, false,
             "Trace flow graph type propagation");
 
 DECLARE_FLAG(bool, propagate_types);
 
 
 void FlowGraphTypePropagator::Propagate(FlowGraph* flow_graph) {
 #ifndef PRODUCT
   Thread* thread = flow_graph->thread();
-  Isolate* const isolate = flow_graph->isolate();
-  TimelineStream* compiler_timeline = isolate->GetCompilerStream();
+  TimelineStream* compiler_timeline = Timeline::GetCompilerStream();
   TimelineDurationScope tds2(thread,
                              compiler_timeline,
                              "FlowGraphTypePropagator");
 #endif  // !PRODUCT
   FlowGraphTypePropagator propagator(flow_graph);
   propagator.Propagate();
 }
 
 
 FlowGraphTypePropagator::FlowGraphTypePropagator(FlowGraph* flow_graph)
@@ skipping 1358 matching lines @@
 CompileType MergedMathInstr::ComputeType() const {
   return CompileType::Dynamic();
 }
 
 
 CompileType ExtractNthOutputInstr::ComputeType() const {
   return CompileType::FromCid(definition_cid_);
 }
 
 }  // namespace dart