Keep two empty lines between declarations for cpp files

test/cctest/test-cpu-profiler.cc

 // 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 39 matching lines @@
 
 TEST(StartStop) {
   CpuProfilesCollection profiles;
   ProfileGenerator generator(&profiles);
   ProfilerEventsProcessor processor(&generator);
   processor.Start();
   processor.Stop();
   processor.Join();
 }
 
+
 static inline i::Address ToAddress(int n) {
   return reinterpret_cast<i::Address>(n);
 }
 
 static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
                                    i::Address frame1,
                                    i::Address frame2 = NULL,
                                    i::Address frame3 = NULL) {
   i::TickSample* sample = proc->TickSampleEvent();
   sample->pc = frame1;
@@ skipping 112 matching lines @@
   CHECK_NE(NULL, comment2);
   CHECK_EQ("comment2", comment2->name());
 }
 
 
 template<typename T>
 static int CompareProfileNodes(const T* p1, const T* p2) {
   return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
 }
 
+
 TEST(TickEvents) {
   TestSetup test_setup;
   LocalContext env;
   i::Isolate* isolate = i::Isolate::Current();
   i::HandleScope scope(isolate);
 
   i::Code* frame1_code = CreateCode(&env);
   i::Code* frame2_code = CreateCode(&env);
   i::Code* frame3_code = CreateCode(&env);
 
@@ skipping 993 matching lines @@
             FindChild(startNode, ProfileGenerator::kUnresolvedFunctionName)) {
       ScopedVector<v8::Handle<v8::String> > names(1);
       names[0] = v8::String::New("apply");
       CheckChildrenNames(unresolvedNode, names);
       GetChild(unresolvedNode, "apply");
     }
   }
 
   cpu_profiler->DeleteAllCpuProfiles();
 }