Remove dependency from infobars component to the embedder

chrome/browser/ui/ios/infobars/infobar_constants.cc

+// Copyright 2014 The Chromium 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 "chrome/browser/ui/infobar_constants.h"
+
+namespace infobars {
+
+const int kSeparatorLineHeight = 1;
+const int kDefaultArrowTargetHeight = 9;
+const int kMaximumArrowTargetHeight = 24;
+const int kDefaultArrowTargetHalfWidth = kDefaultArrowTargetHeight;
+const int kMaximumArrowTargetHalfWidth = 14;
+const int kDefaultBarTargetHeight = 36;
+
+}  // namespace infobars