Update Blink GC plugin to reflect that Oilpan is now always enabled.

tools/clang/blink_gc_plugin/Edge.h

 // Copyright 2014 The Chromium 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 TOOLS_BLINK_GC_PLUGIN_EDGE_H_
 #define TOOLS_BLINK_GC_PLUGIN_EDGE_H_
 
 #include <cassert>
 #include <deque>
 #include <vector>
@@ skipping 69 matching lines @@
   virtual ~Edge() {}
   virtual LivenessKind Kind() = 0;
   virtual void Accept(EdgeVisitor*) = 0;
   virtual bool NeedsFinalization() = 0;
   virtual TracingStatus NeedsTracing(NeedsTracingOption) {
     return TracingStatus::Unknown();
   }
 
   virtual bool IsValue() { return false; }
   virtual bool IsRawPtr() { return false; }
-  virtual bool IsRawPtrClass() { return false; }
   virtual bool IsRefPtr() { return false; }
   virtual bool IsOwnPtr() { return false; }
   virtual bool IsMember() { return false; }
   virtual bool IsWeakMember() { return false; }
   virtual bool IsPersistent() { return false; }
   virtual bool IsCollection() { return false; }
 };
 
 // A value edge is a direct edge to some type, eg, part-object edges.
 class Value : public Edge {
@@ skipping 18 matching lines @@
  protected:
   PtrEdge(Edge* ptr) : ptr_(ptr) {
     assert(ptr && "EdgePtr pointer must be non-null");
   }
  private:
   Edge* ptr_;
 };
 
 class RawPtr : public PtrEdge {
  public:
-  RawPtr(Edge* ptr, bool is_ptr_class, bool is_ref_type)
+  RawPtr(Edge* ptr, bool is_ref_type)
       : PtrEdge(ptr)
-      , is_ptr_class_(is_ptr_class)
       , is_ref_type_(is_ref_type)
   {
-      assert(!(is_ptr_class_ && is_ref_type_));
   }
 
   bool IsRawPtr() { return true; }
-  bool IsRawPtrClass() { return is_ptr_class_; }
   LivenessKind Kind() { return kWeak; }
   bool NeedsFinalization() { return false; }
   TracingStatus NeedsTracing(NeedsTracingOption) {
     return TracingStatus::Unneeded();
   }
   void Accept(EdgeVisitor* visitor) { visitor->VisitRawPtr(this); }
 
   bool HasReferenceType() { return is_ref_type_; }
  private:
-  bool is_ptr_class_;
   bool is_ref_type_;
 };
 
 class RefPtr : public PtrEdge {
  public:
   explicit RefPtr(Edge* ptr) : PtrEdge(ptr) { }
   bool IsRefPtr() { return true; }
   LivenessKind Kind() { return kStrong; }
   bool NeedsFinalization() { return true; }
   TracingStatus NeedsTracing(NeedsTracingOption) {
@@ skipping 89 matching lines @@
   }
 
  private:
   RecordInfo* info_;
   Members members_;
   bool on_heap_;
   bool is_root_;
 };
 
 #endif  // TOOLS_BLINK_GC_PLUGIN_EDGE_H_