C++ profiles processor: put under #ifdef and fix issues.

src/profile-generator-inl.h

 // Copyright 2010 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.
 
 #ifndef V8_PROFILE_GENERATOR_INL_H_
 #define V8_PROFILE_GENERATOR_INL_H_
 
 #include "profile-generator.h"
 
 namespace v8 {
 namespace internal {
 
+#ifdef ENABLE_CPP_PROFILES_PROCESSOR
 
 CodeEntry::CodeEntry(Logger::LogEventsAndTags tag,
                      const char* name,
                      const char* resource_name,
                      int line_number)
     : tag_(tag),
       name_(name),
       resource_name_(resource_name),
       line_number_(line_number) {
 }
@@ skipping 23 matching lines @@
 
 void CodeMap::MoveCode(Address from, Address to) {
   tree_.Move(from, to);
 }
 
 void CodeMap::DeleteCode(Address addr) {
   tree_.Remove(addr);
 }
 
 
+bool CpuProfilesCollection::is_last_profile() {
+  // Called from VM thread, and only it can mutate the list,
+  // so no locking is needed here.
+  return current_profiles_.length() == 1;
+}
+
+#endif  // ENABLE_CPP_PROFILES_PROCESSOR
+
 } }  // namespace v8::internal
 
 #endif  // V8_PROFILE_GENERATOR_INL_H_