Fix C++ violation.

include/v8-profiler.h

Index: include/v8-profiler.h
diff --git a/include/v8-profiler.h b/include/v8-profiler.h
index 4d8dc22fb2047e686a18f9d18cce1e86476198a2..82a14d66003001c6b3ee8afcc7807fed1ecb76dc 100644
--- a/include/v8-profiler.h
+++ b/include/v8-profiler.h
@@ -24,11 +24,13 @@ struct CpuProfileDeoptFrame {
   size_t position;
 };
 
+}  // namespace v8
 
 #ifdef V8_OS_WIN
-template class V8_EXPORT std::vector<CpuProfileDeoptFrame>;
+template class V8_EXPORT std::vector<v8::CpuProfileDeoptFrame>;
 #endif
 
+namespace v8 {
 
 struct V8_EXPORT CpuProfileDeoptInfo {
   /** A pointer to a static string owned by v8. */
@@ -36,11 +38,13 @@ struct V8_EXPORT CpuProfileDeoptInfo {
   std::vector<CpuProfileDeoptFrame> stack;
 };
 
+}  // namespace v8
 
 #ifdef V8_OS_WIN
-template class V8_EXPORT std::vector<CpuProfileDeoptInfo>;
+template class V8_EXPORT std::vector<v8::CpuProfileDeoptInfo>;
 #endif
 
+namespace v8 {
 
 /**
  * CpuProfileNode represents a node in a call graph.