Replace OStream with std::ostream.

src/gdb-jit.cc

 // Copyright 2010 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.
 
 #ifdef ENABLE_GDB_JIT_INTERFACE
 #include "src/v8.h"
 
 #include "src/base/bits.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 1824 matching lines @@
 
   // GDB will inspect contents of this descriptor.
   // Static initialization is necessary to prevent GDB from seeing
   // uninitialized descriptor.
   JITDescriptor __jit_debug_descriptor = { 1, 0, 0, 0 };
 
 #ifdef OBJECT_PRINT
   void __gdb_print_v8_object(Object* object) {
     OFStream os(stdout);
     object->Print(os);
-    os << flush;
+    os << std::flush;
   }
 #endif
 }
 
 
 static JITCodeEntry* CreateCodeEntry(Address symfile_addr,
                                      uintptr_t symfile_size) {
   JITCodeEntry* entry = static_cast<JITCodeEntry*>(
       malloc(sizeof(JITCodeEntry) + symfile_size));
 
@@ skipping 339 matching lines @@
           reinterpret_cast<Address>(event->code_start));
       RegisterDetailedLineInfo(code, line_info);
       break;
     }
   }
 }
 
 
 } }  // namespace v8::internal
 #endif