Split nested namespaces declaration in two lines in accordance with C++ Style Guide.

src/v8.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "v8.h"
 
 #include "bootstrapper.h"
 #include "debug.h"
 #include "serialize.h"
 #include "stub-cache.h"
 #include "oprofile-agent.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 bool V8::has_been_setup_ = false;
 bool V8::has_been_disposed_ = false;
 
 bool V8::Initialize(Deserializer *des) {
   bool create_heap_objects = des == NULL;
   if (HasBeenDisposed()) return false;
   if (HasBeenSetup()) return true;
   has_been_setup_ = true;
 #ifdef DEBUG
@@ skipping 64 matching lines @@
   Top::TearDown();
 
   Heap::TearDown();
   Logger::TearDown();
 
   has_been_setup_ = false;
   has_been_disposed_ = true;
 }
 
 } }  // namespace v8::internal