Remove the global Strength enum class completely.

src/factory.h

 // Copyright 2014 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_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/isolate.h"
 #include "src/messages.h"
 #include "src/type-feedback-vector.h"
@@ skipping 392 matching lines @@
   // JS modules are pretenured.
   Handle<JSModule> NewJSModule(Handle<Context> context,
                                Handle<ScopeInfo> scope_info);
 
   // JS arrays are pretenured when allocated by the parser.
 
   // Create a JSArray with a specified length and elements initialized
   // according to the specified mode.
   Handle<JSArray> NewJSArray(
       ElementsKind elements_kind, int length, int capacity,
-      Strength strength = Strength::WEAK,
       ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS,
       PretenureFlag pretenure = NOT_TENURED);
 
   Handle<JSArray> NewJSArray(
       int capacity, ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND,
-      Strength strength = Strength::WEAK,
       PretenureFlag pretenure = NOT_TENURED) {
     if (capacity != 0) {
       elements_kind = GetHoleyElementsKind(elements_kind);
     }
-    return NewJSArray(elements_kind, 0, capacity, strength,
+    return NewJSArray(elements_kind, 0, capacity,
                       INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE, pretenure);
   }
 
   // Create a JSArray with the given elements.
   Handle<JSArray> NewJSArrayWithElements(Handle<FixedArrayBase> elements,
                                          ElementsKind elements_kind, int length,
-                                         Strength strength = Strength::WEAK,
                                          PretenureFlag pretenure = NOT_TENURED);
 
   Handle<JSArray> NewJSArrayWithElements(
       Handle<FixedArrayBase> elements,
       ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND,
-      Strength strength = Strength::WEAK,
       PretenureFlag pretenure = NOT_TENURED) {
     return NewJSArrayWithElements(elements, elements_kind, elements->length(),
-                                  strength, pretenure);
+                                  pretenure);
   }
 
   void NewJSArrayStorage(
       Handle<JSArray> array,
       int length,
       int capacity,
       ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS);
 
   Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function);
 
@@ skipping 193 matching lines @@
                                              int end_position,
                                              Handle<Object> script,
                                              Handle<Object> stack_frames);
 
   Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
 
   // Return a map for given number of properties using the map cache in the
   // native context.
   Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context,
                                         int number_of_properties,
-                                        bool is_strong,
                                         bool* is_result_from_cache);
 
   // Creates a new FixedArray that holds the data associated with the
   // atom regexp and stores it in the regexp.
   void SetRegExpAtomData(Handle<JSRegExp> regexp,
                          JSRegExp::Type type,
                          Handle<String> source,
                          JSRegExp::Flags flags,
                          Handle<Object> match_pattern);
 
@@ skipping 38 matching lines @@
   void SetNumberStringCache(Handle<Object> number, Handle<String> string);
 
   // Creates a function initialized with a shared part.
   Handle<JSFunction> NewFunction(Handle<Map> map,
                                  Handle<SharedFunctionInfo> info,
                                  Handle<Context> context,
                                  PretenureFlag pretenure = TENURED);
 
   // Create a JSArray with no elements and no length.
   Handle<JSArray> NewJSArray(ElementsKind elements_kind,
-                             Strength strength = Strength::WEAK,
                              PretenureFlag pretenure = NOT_TENURED);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_