Move StackHandlerConstants to platform-independent frames.h

src/frames.h

Index: src/frames.h
diff --git a/src/frames.h b/src/frames.h
index ca0d5bec9b6b24167c65c033a7311ec03f5d78d8..39382db6032111e3622f090dc57e304b4cb2e70b 100644
--- a/src/frames.h
+++ b/src/frames.h
@@ -84,6 +84,18 @@ class InnerPointerToCodeCache {
 };
 
 
+class StackHandlerConstants : public AllStatic {
+ public:
+  static const int kNextOffset     = 0 * kPointerSize;
+  static const int kCodeOffset     = 1 * kPointerSize;
+  static const int kStateOffset    = 2 * kPointerSize;
+  static const int kContextOffset  = 3 * kPointerSize;
+  static const int kFPOffset       = 4 * kPointerSize;
+
+  static const int kSize = kFPOffset + kPointerSize;
+};
+
+
 class StackHandler BASE_EMBEDDED {
  public:
   enum Kind {