Merge r7635 "Initialize ThreadLocalTop" to trunk.

src/isolate.h

 // Copyright 2011 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 167 matching lines @@
   int id_;
 
   static Atomic32 highest_thread_id_;
 
   friend class Isolate;
 };
 
 
 class ThreadLocalTop BASE_EMBEDDED {
  public:
+  // Does early low-level initialization that does not depend on the
+  // isolate being present.
+  ThreadLocalTop();
+
   // Initialize the thread data.
   void Initialize();
 
   // Get the top C++ try catch handler or NULL if none are registered.
   //
   // This method is not guarenteed to return an address that can be
   // used for comparison with addresses into the JS stack.  If such an
   // address is needed, use try_catch_handler_address.
   v8::TryCatch* TryCatchHandler();
 
@@ skipping 59 matching lines @@
   StateTag current_vm_state_;
 #endif
 
   // Generated code scratch locations.
   int32_t formal_count_;
 
   // Call back function to report unsafe JS accesses.
   v8::FailedAccessCheckCallback failed_access_check_callback_;
 
  private:
+  void InitializeInternal();
+
   Address try_catch_handler_address_;
 };
 
 #if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_MIPS)
 
 #define ISOLATE_PLATFORM_INIT_LIST(V)                                          \
   /* VirtualFrame::SpilledScope state */                                       \
   V(bool, is_virtual_frame_in_spilled_scope, false)                            \
   /* CodeGenerator::EmitNamedStore state */                                    \
   V(int, inlined_write_barrier_size, -1)
@@ skipping 1096 matching lines @@
 
 } }  // namespace v8::internal
 
 // TODO(isolates): Get rid of these -inl.h includes and place them only where
 //                 they're needed.
 #include "allocation-inl.h"
 #include "zone-inl.h"
 #include "frames-inl.h"
 
 #endif  // V8_ISOLATE_H_