Replace OStream with std::ostream.

src/ast.cc

 // 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.
 
 #include "src/ast.h"
 
 #include <cmath>  // For isfinite.
 #include "src/builtins.h"
 #include "src/code-stubs.h"
 #include "src/contexts.h"
@@ skipping 776 matching lines @@
 }
 
 
 // Convert regular expression trees to a simple sexp representation.
 // This representation should be different from the input grammar
 // in as many cases as possible, to make it more difficult for incorrect
 // parses to look as correct ones which is likely if the input and
 // output formats are alike.
 class RegExpUnparser FINAL : public RegExpVisitor {
  public:
-  RegExpUnparser(OStream& os, Zone* zone) : os_(os), zone_(zone) {}
+  RegExpUnparser(std::ostream& os, Zone* zone) : os_(os), zone_(zone) {}
   void VisitCharacterRange(CharacterRange that);
 #define MAKE_CASE(Name) virtual void* Visit##Name(RegExp##Name*,          \
                                                   void* data) OVERRIDE;
   FOR_EACH_REG_EXP_TREE_TYPE(MAKE_CASE)
 #undef MAKE_CASE
  private:
-  OStream& os_;
+  std::ostream& os_;
   Zone* zone_;
 };
 
 
 void* RegExpUnparser::VisitDisjunction(RegExpDisjunction* that, void* data) {
   os_ << "(|";
   for (int i = 0; i <  that->alternatives()->length(); i++) {
     os_ << " ";
     that->alternatives()->at(i)->Accept(this, data);
   }
@@ skipping 122 matching lines @@
   return NULL;
 }
 
 
 void* RegExpUnparser::VisitEmpty(RegExpEmpty* that, void* data) {
   os_ << '%';
   return NULL;
 }
 
 
-OStream& RegExpTree::Print(OStream& os, Zone* zone) {  // NOLINT
+std::ostream& RegExpTree::Print(std::ostream& os, Zone* zone) {  // NOLINT
   RegExpUnparser unparser(os, zone);
   Accept(&unparser, NULL);
   return os;
 }
 
 
 RegExpDisjunction::RegExpDisjunction(ZoneList<RegExpTree*>* alternatives)
     : alternatives_(alternatives) {
   DCHECK(alternatives->length() > 1);
   RegExpTree* first_alternative = alternatives->at(0);
@@ skipping 179 matching lines @@
     SNPrintF(buffer, "%d", Smi::cast(*value())->value());
     str = arr;
   } else {
     str = DoubleToCString(value()->Number(), buffer);
   }
   return isolate_->factory()->NewStringFromAsciiChecked(str);
 }
 
 
 } }  // namespace v8::internal