[ios clean] Toolbar UI improvements.

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

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_constants.h
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.h b/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..bdbfeb2232312d0be1cb220967585738f3feecc2
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_constants.h
@@ -0,0 +1,28 @@
+// 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.
+
+#ifndef IOS_CLEAN_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_CONSTANTS_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_CONSTANTS_H_
+
+#import <CoreGraphics/CoreGraphics.h>
+
+// Toolbar styling.
+extern const CGFloat kToolbarBackgroundBrightness;
+extern const CGFloat kToolbarTintColorBrightness;
+
+// Stackview constraints.
+extern const CGFloat kVerticalMargin;
+extern const CGFloat kHorizontalMargin;
+extern const CGFloat kStackViewSpacing;
+
+// Location bar styling.
+extern const CGFloat kLocationBarBorderWidth;
+extern const CGFloat kLocationBarBorderColorBrightness;
+extern const CGFloat kLocationBarShadowRadius;
+extern const CGFloat kLocationBarShadowOpacity;
+
+// Progress Bar Height.
+extern const CGFloat kProgressBarHeight;
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_CONSTANTS_H_