Add --optimize_for_size to tests flag matrix.

test/cctest/cctest.h

 // Copyright 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 306 matching lines @@
   v8::ScriptOrigin origin(v8::String::New(origin_url),
                           v8::Integer::New(line_number),
                           v8::Integer::New(column_number));
   return v8::Script::Compile(v8::String::New(source), &origin)->Run();
 }
 
 
 // Pick a slightly different port to allow tests to be run in parallel.
 static inline int FlagDependentPortOffset() {
   return ::v8::internal::FLAG_crankshaft == false ? 100 :
-         ::v8::internal::FLAG_always_opt ? 200 : 0;
+         ::v8::internal::FLAG_always_opt ? 200 :
+         ::v8::internal::FLAG_optimize_for_size ? 300 : 0;
 }
 
 
 // Helper function that simulates a full new-space in the heap.
 static inline void SimulateFullSpace(v8::internal::NewSpace* space) {
   int new_linear_size = static_cast<int>(
       *space->allocation_limit_address() - *space->allocation_top_address());
   v8::internal::MaybeObject* maybe = space->AllocateRaw(new_linear_size);
   v8::internal::FreeListNode* node = v8::internal::FreeListNode::cast(maybe);
   node->set_size(space->heap(), new_linear_size);
@@ skipping 26 matching lines @@
     CHECK_EQ(0, heap_profiler_->FindUntrackedObjects());
     heap_profiler_->StopHeapAllocationsRecording();
   }
 
  private:
   i::HeapProfiler* heap_profiler_;
 };
 
 
 #endif  // ifndef CCTEST_H_