[crankshaft] Remove graph builder from optimized compile job.

src/compiler.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include "src/allocation.h"
 #include "src/ast/ast.h"
 #include "src/bailout-reason.h"
@@ skipping 491 matching lines @@
     info_->set_deferred_handles(deferred_.Detach());
   }
 
  private:
   DeferredHandleScope deferred_;
   CompilationInfo* info_;
 };
 
 
 class HGraph;
-class HOptimizedGraphBuilder;
 class LChunk;
 
 // A helper class that calls the three compilation phases in
 // Crankshaft and keeps track of its state.  The three phases
 // CreateGraph, OptimizeGraph and GenerateAndInstallCode can either
 // fail, bail-out to the full code generator or succeed.  Apart from
 // their return value, the status of the phase last run can be checked
 // using last_status().
 class OptimizedCompileJob: public ZoneObject {
  public:
   explicit OptimizedCompileJob(CompilationInfo* info)
       : info_(info),
-        graph_builder_(NULL),
         graph_(NULL),
         chunk_(NULL),
         last_status_(FAILED),
         awaiting_install_(false) { }
 
   enum Status {
     FAILED, BAILED_OUT, SUCCEEDED
   };
 
   MUST_USE_RESULT Status CreateGraph();
@@ skipping 16 matching lines @@
 
   void WaitForInstall() {
     DCHECK(info_->is_osr());
     awaiting_install_ = true;
   }
 
   bool IsWaitingForInstall() { return awaiting_install_; }
 
  private:
   CompilationInfo* info_;
-  HOptimizedGraphBuilder* graph_builder_;
   HGraph* graph_;
   LChunk* chunk_;
   base::TimeDelta time_taken_to_create_graph_;
   base::TimeDelta time_taken_to_optimize_;
   base::TimeDelta time_taken_to_codegen_;
   Status last_status_;
   bool awaiting_install_;
 
   MUST_USE_RESULT Status SetLastStatus(Status status) {
     last_status_ = status;
@@ skipping 115 matching lines @@
   size_t info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_H_