Eliminate no_frame_range data

src/strings-storage.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_STRINGS_STORAGE_H_
 #define V8_STRINGS_STORAGE_H_
 
 #include "src/allocation.h"
 #include "src/hashmap.h"
 
 namespace v8 {
 namespace internal {
 
-struct OffsetRange;
-
 // Provides a storage of strings allocated in C++ heap, to hold them
 // forever, even if they disappear from JS heap or external storage.
 class StringsStorage {
  public:
   explicit StringsStorage(Heap* heap);
   ~StringsStorage();
 
   const char* GetCopy(const char* src);
   const char* GetFormatted(const char* format, ...);
   const char* GetVFormatted(const char* format, va_list args);
@@ skipping 12 matching lines @@
 
   uint32_t hash_seed_;
   HashMap names_;
 
   DISALLOW_COPY_AND_ASSIGN(StringsStorage);
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_STRINGS_STORAGE_H_