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

src/frames-inl.h

 // 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 20 matching lines @@
 #include "frames.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "ia32/frames-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "x64/frames-x64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "arm/frames-arm.h"
 #endif
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 
 inline Address StackHandler::address() const {
   // NOTE: There's an obvious problem with the address of the NULL
   // stack handler. Right now, it benefits us that the subtraction
   // leads to a very high address (above everything else on the
   // stack), but maybe we should stop relying on it?
   const int displacement = StackHandlerConstants::kAddressDisplacement;
   Address address = reinterpret_cast<Address>(const_cast<StackHandler*>(this));
   return address + displacement;
@@ skipping 167 matching lines @@
 template<typename Iterator>
 void JavaScriptFrameIteratorTemp<Iterator>::Reset() {
   iterator_.Reset();
   if (!done()) Advance();
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_INL_H_