Move some Runtime:: functions and remove runtime.h as include when unnecessary.

src/runtime/runtime-collections.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/arguments.h"
-#include "src/runtime/runtime.h"
 #include "src/runtime/runtime-utils.h"
 
 
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_SetInitialize) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0);
@@ skipping 319 matching lines @@
   // isolate. If it's called more often, the map should be moved into the
   // strong root list.
   Handle<Map> map =
       isolate->factory()->NewMap(JS_WEAK_MAP_TYPE, JSWeakMap::kSize);
   Handle<JSWeakMap> weakmap =
       Handle<JSWeakMap>::cast(isolate->factory()->NewJSObjectFromMap(map));
   return *WeakCollectionInitialize(isolate, weakmap);
 }
 }
 }  // namespace v8::internal