Update infobars to use VectorIcon struct instead of VectorIconId.

ui/vector_icons/extension.icon

Index: ui/vector_icons/extension.icon
diff --git a/ui/vector_icons/extension.icon b/ui/vector_icons/extension.icon
deleted file mode 100644
index 75fe2c8060095c7dc998853ba77a5e262a9bef2d..0000000000000000000000000000000000000000
--- a/ui/vector_icons/extension.icon
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2015 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.
-
-MOVE_TO, 41, 22,
-R_H_LINE_TO, -3,
-R_V_LINE_TO, -8,
-R_CUBIC_TO, 0, -2.21f, -1.79f, -4, -4, -4,
-R_H_LINE_TO, -8,
-V_LINE_TO, 7,
-R_CUBIC_TO, 0, -2.76f, -2.24f, -5, -5, -5,
-R_CUBIC_TO, -2.76f, 0, -5, 2.24f, -5, 5,
-R_V_LINE_TO, 3,
-H_LINE_TO, 8,
-R_CUBIC_TO, -2.21f, 0, -3.98f, 1.79f, -3.98f, 4,
-R_LINE_TO, -0.01f, 7.6f,
-H_LINE_TO, 7,
-R_CUBIC_TO, 2.98f, 0, 5.4f, 2.42f, 5.4f, 5.4f,
-R_CUBIC_TO, 0, 2.98f, -2.42f, 5.4f, -5.4f, 5.4f,
-H_LINE_TO, 4.01f,
-LINE_TO, 4, 40,
-R_CUBIC_TO, 0, 2.21f, 1.79f, 4, 4, 4,
-R_H_LINE_TO, 7.6f,
-R_V_LINE_TO, -3,
-R_CUBIC_TO, 0, -2.98f, 2.42f, -5.4f, 5.4f, -5.4f,
-R_CUBIC_TO, 2.98f, 0, 5.4f, 2.42f, 5.4f, 5.4f,
-R_V_LINE_TO, 3,
-H_LINE_TO, 34,
-R_CUBIC_TO, 2.21f, 0, 4, -1.79f, 4, -4,
-R_V_LINE_TO, -8,
-R_H_LINE_TO, 3,
-R_CUBIC_TO, 2.76f, 0, 5, -2.24f, 5, -5,
-R_CUBIC_TO, 0, -2.76f, -2.24f, -5, -5, -5,
-CLOSE,
-END