Replace OStream with std::ostream.

src/safepoint-table.h

 // Copyright 2011 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_SAFEPOINT_TABLE_H_
 #define V8_SAFEPOINT_TABLE_H_
 
 #include "src/allocation.h"
 #include "src/heap/heap.h"
 #include "src/v8memory.h"
@@ skipping 86 matching lines @@
   SafepointEntry GetEntry(unsigned index) const {
     DCHECK(index < length_);
     unsigned info = Memory::uint32_at(GetInfoLocation(index));
     uint8_t* bits = &Memory::uint8_at(entries_ + (index * entry_size_));
     return SafepointEntry(info, bits);
   }
 
   // Returns the entry for the given pc.
   SafepointEntry FindEntry(Address pc) const;
 
-  void PrintEntry(unsigned index, OStream& os) const;  // NOLINT
+  void PrintEntry(unsigned index, std::ostream& os) const;  // NOLINT
 
  private:
   static const uint8_t kNoRegisters = 0xFF;
 
   static const int kLengthOffset = 0;
   static const int kEntrySizeOffset = kLengthOffset + kIntSize;
   static const int kHeaderSize = kEntrySizeOffset + kIntSize;
 
   static const int kPcSize = kIntSize;
   static const int kDeoptimizationIndexSize = kIntSize;
   static const int kPcAndDeoptimizationIndexSize =
       kPcSize + kDeoptimizationIndexSize;
 
   Address GetPcOffsetLocation(unsigned index) const {
     return pc_and_deoptimization_indexes_ +
            (index * kPcAndDeoptimizationIndexSize);
   }
 
   Address GetInfoLocation(unsigned index) const {
     return GetPcOffsetLocation(index) + kPcSize;
   }
 
-  static void PrintBits(OStream& os,  // NOLINT
+  static void PrintBits(std::ostream& os,  // NOLINT
                         uint8_t byte, int digits);
 
   DisallowHeapAllocation no_allocation_;
   Code* code_;
   unsigned length_;
   unsigned entry_size_;
 
   Address pc_and_deoptimization_indexes_;
   Address entries_;
 
@@ skipping 85 matching lines @@
   int last_lazy_safepoint_;
 
   Zone* zone_;
 
   DISALLOW_COPY_AND_ASSIGN(SafepointTableBuilder);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SAFEPOINT_TABLE_H_