Make FlushICache part of Assembler(Base) and take Isolate as parameter.

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 83 matching lines @@
   static void QuietNaN(HeapObject* nan) { }
 
   int pc_offset() const { return static_cast<int>(pc_ - buffer_); }
 
   // This function is called when code generation is aborted, so that
   // the assembler could clean up internal data structures.
   virtual void AbortedCodeGeneration() { }
 
   static const int kMinimalBufferSize = 4*KB;
 
+  static void FlushICache(Isolate* isolate, void* start, size_t size);
+
+  // TODO(all): Help get rid of this one.
+  static void FlushICacheWithoutIsolate(void* start, size_t size);
+
  protected:
   // The buffer into which code and relocation info are generated. It could
   // either be owned by the assembler or be provided externally.
   byte* buffer_;
   int buffer_size_;
   bool own_buffer_;
 
   void set_constant_pool_available(bool available) {
     if (FLAG_enable_embedded_constant_pool) {
       constant_pool_available_ = available;
@@ skipping 1153 matching lines @@
   };
 
   Label emitted_label_;  // Records pc_offset of emitted pool
   PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES];
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_