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

src/contexts.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 13 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "v8.h"
 
 #include "bootstrapper.h"
 #include "debug.h"
 #include "scopeinfo.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 JSBuiltinsObject* Context::builtins() {
   GlobalObject* object = global();
   if (object->IsJSGlobalObject()) {
     return JSGlobalObject::cast(object)->builtins();
   } else {
     ASSERT(object->IsJSBuiltinsObject());
     return JSBuiltinsObject::cast(object);
   }
 }
@@ skipping 198 matching lines @@
 
 
 bool Context::IsBootstrappingOrGlobalObject(Object* object) {
   // During bootstrapping we allow all objects to pass as global
   // objects. This is necessary to fix circular dependencies.
   return Bootstrapper::IsActive() || object->IsGlobalObject();
 }
 #endif
 
 } }  // namespace v8::internal