Move compilation queues into BackgroundCompiler class

runtime/vm/compiler.h

 // Copyright (c) 2012, 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.
 
 #ifndef VM_COMPILER_H_
 #define VM_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
 #include "vm/runtime_entry.h"
@@ skipping 155 matching lines @@
 
   // Call to activate/install optimized code (must occur in the mutator thread).
   void InstallGeneratedCode();
 
   // Access to queue length is guarded with queue_monitor_;
   intptr_t function_queue_length() const { return function_queue_length_; }
   void set_function_queue_length(intptr_t value) {
     function_queue_length_ = value;
   }
 
+  void VisitPointers(ObjectPointerVisitor* visitor);
+
  private:
   explicit BackgroundCompiler(Isolate* isolate);
 
+  void set_compilation_function_queue(const GrowableObjectArray& value);
+  void set_compilation_result_queue(const GrowableObjectArray& value);
+
   GrowableObjectArray* FunctionsQueue() const;
   GrowableObjectArray* ResultQueue() const;
 
   virtual void Run();
 
   void AddFunction(const Function& f);
   RawFunction* RemoveFunctionOrNull();
   RawFunction* LastFunctionOrNull() const;
 
   void AddResult(const BackgroundCompilationResult& value);
 
   Isolate* isolate_;
   bool running_;       // While true, will try to read queue and compile.
   bool* done_;         // True if the thread is done.
   Monitor* queue_monitor_;  // Controls access to the queue.
   Monitor* done_monitor_;   // Notify/wait that the thread is done.
 
   // Lightweight access to length of compiler queue.
   intptr_t function_queue_length_;
 
+  RawGrowableObjectArray* compilation_function_queue_;
+  RawGrowableObjectArray* compilation_result_queue_;
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(BackgroundCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_COMPILER_H_