Fix newly discovered presubmit errors.

test/cctest/test-declarative-accessors.cc

 // Copyright 2013 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 19 matching lines @@
 #include "src/v8.h"
 
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
 
 
 class HandleArray : public Malloced {
  public:
   static const unsigned kArraySize = 200;
-  explicit HandleArray() {}
+  HandleArray() {}
   ~HandleArray() { Reset(); }
   void Reset() {
     for (unsigned i = 0; i < kArraySize; i++) {
       if (handles_[i].IsEmpty()) continue;
       handles_[i].Reset();
     }
   }
   v8::Persistent<v8::Value> handles_[kArraySize];
  private:
   DISALLOW_COPY_AND_ASSIGN(HandleArray);
@@ skipping 242 matching lines @@
   int internal_field = 0;
   v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
       OOD::NewInternalFieldDereference(helper.isolate_, internal_field)
       ->NewRawShift(helper.isolate_, index*kPointerSize)
       ->NewHandleDereference(helper.isolate_);
   HandleArray* array = helper.handle_array_.get();
   v8::Handle<v8::String> expected = v8_str("whatever");
   array->handles_[index].Reset(helper.isolate_, expected);
   VerifyRead(descriptor, internal_field, array, expected);
 }