[ios clean] Toolbar UI improvements.

ios/clean/chrome/browser/ui/toolbar/toolbar_constants.mm

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_constants.mm
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.mm b/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.mm
new file mode 100644
index 0000000000000000000000000000000000000000..439495fd8e45bdebc16841763e16a51f0d491ca8
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.mm
@@ -0,0 +1,19 @@
+// Copyright 2017 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.
+
+#import "ios/clean/chrome/browser/ui/toolbar/toolbar_constants.h"
+
+const CGFloat kToolbarBackgroundBrightness = 242.0 / 255.0;
+const CGFloat kToolbarTintColorBrightness = 90.0 / 255.0;
+
+const CGFloat kVerticalMargin = 7.0f;
+const CGFloat kHorizontalMargin = 1.0f;
+const CGFloat kStackViewSpacing = 2.0f;
+
+const CGFloat kLocationBarBorderWidth = 1.0f;
+const CGFloat kLocationBarBorderColorBrightness = 208.0 / 255.0;
+const CGFloat kLocationBarShadowRadius = 0.0f;
+const CGFloat kLocationBarShadowOpacity = 0.2f;
+
+const CGFloat kProgressBarHeight = 2.0f;