[ios] Deletes tab_util.h and tab_util.mm.

ios/chrome/browser/ui/tabs/tab_util.mm

Index: ios/chrome/browser/ui/tabs/tab_util.mm
diff --git a/ios/chrome/browser/ui/tabs/tab_util.mm b/ios/chrome/browser/ui/tabs/tab_util.mm
deleted file mode 100644
index 9095cc84a5545b16da674ef144b9bb9338332a7d..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/tabs/tab_util.mm
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2012 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 "ios/chrome/browser/ui/tabs/tab_util.h"
-
-#include <sys/sysctl.h>
-
-namespace {
-
-// Constants for inset and control points for tab shape.
-const CGFloat kInsetMultiplier = 2.0 / 3.0;
-const CGFloat kControlPoint1Multiplier = 1.0 / 3.0;
-const CGFloat kControlPoint2Multiplier = 3.0 / 8.0;
-
-}  // anonymous namespace
-
-namespace ios_internal {
-namespace tab_util {
-
-UIBezierPath* tabBezierPathForRect(CGRect rect) {
-  const CGFloat lineWidth = 1.0;
-  const CGFloat halfLineWidth = lineWidth / 2.0;
-
-  // Outset by halfLineWidth in order to draw on pixels rather than on borders
-  // (which would cause blurry pixels). Offset instead of outset vertically,
-  // otherwise clipping will occur.
-  rect = CGRectInset(rect, -halfLineWidth, 0);
-  rect.origin.y += halfLineWidth;
-
-  CGPoint bottomLeft =
-      CGPointMake(CGRectGetMinX(rect), CGRectGetMaxY(rect) - (2 * lineWidth));
-  CGPoint bottomRight =
-      CGPointMake(CGRectGetMaxX(rect), CGRectGetMaxY(rect) - (2 * lineWidth));
-  CGPoint topRight = CGPointMake(
-      CGRectGetMaxX(rect) - (kInsetMultiplier * CGRectGetHeight(rect)),
-      CGRectGetMinY(rect));
-  CGPoint topLeft = CGPointMake(
-      CGRectGetMinX(rect) + (kInsetMultiplier * CGRectGetHeight(rect)),
-      CGRectGetMinY(rect));
-
-  CGFloat baseControlPointOutset =
-      CGRectGetHeight(rect) * kControlPoint1Multiplier;
-  CGFloat bottomControlPointInset =
-      CGRectGetHeight(rect) * kControlPoint2Multiplier;
-
-  // Outset many of these values by lineWidth to cause the fill to bleed outside
-  // the clip area.
-  UIBezierPath* path = [UIBezierPath bezierPath];
-  [path moveToPoint:CGPointMake(bottomLeft.x - lineWidth,
-                                bottomLeft.y + (2 * lineWidth))];
-  [path addLineToPoint:CGPointMake(bottomLeft.x - lineWidth, bottomLeft.y)];
-  [path addLineToPoint:bottomLeft];
-  [path addCurveToPoint:topLeft
-          controlPoint1:CGPointMake(bottomLeft.x + baseControlPointOutset,
-                                    bottomLeft.y)
-          controlPoint2:CGPointMake(topLeft.x - bottomControlPointInset,
-                                    topLeft.y)];
-  [path addLineToPoint:topRight];
-  [path addCurveToPoint:bottomRight
-          controlPoint1:CGPointMake(topRight.x + bottomControlPointInset,
-                                    topRight.y)
-          controlPoint2:CGPointMake(bottomRight.x - baseControlPointOutset,
-                                    bottomRight.y)];
-  [path addLineToPoint:CGPointMake(bottomRight.x + lineWidth, bottomRight.y)];
-  [path addLineToPoint:CGPointMake(bottomRight.x + lineWidth,
-                                   bottomRight.y + (2 * lineWidth))];
-  return path;
-}
-
-}  // namespace tab_util
-}  // namespace ios_internal