capture_mode: Add capture mode icon.

This does not add a usage, but we will add two shortly (by two separate
engineers) which is why this is done first.

Test: manually replaced a current icon
Bug: 1105227
Change-Id: I453d219d57fd54f5e8a43e518a0ca648e82c6125
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2337494Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#794766}

ash/resources/vector_icons/BUILD.gn

@@ -30,6 +30,7 @@ aggregate_vector_icons("ash_vector_icons") {
     "battery.icon",
     "bitmap.icon",
     "captive_portal.icon",
+    "capture_mode.icon",
     "check_circle.icon",
     "custom_data.icon",
     "delete.icon",

ash/resources/vector_icons/capture_mode.icon

+// Copyright 2020 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.
+
+CANVAS_DIMENSIONS, 20,
+MOVE_TO, 13, 10,
+R_ARC_TO, 3, 3, 0, 1, 1, -6, 0,
+R_ARC_TO, 3, 3, 0, 0, 1, 6, 0,
+CLOSE,
+R_MOVE_TO, -2, 0,
+R_ARC_TO, 1, 1, 0, 1, 1, -2, 0,
+R_ARC_TO, 1, 1, 0, 0, 1, 2, 0,
+CLOSE,
+MOVE_TO, 3, 5,
+R_ARC_TO, 2, 2, 0, 0, 1, 2, -2,
+R_H_LINE_TO, 10,
+R_ARC_TO, 2, 2, 0, 0, 1, 2, 2,
+R_V_LINE_TO, 10,
+R_ARC_TO, 2, 2, 0, 0, 1, -2, 2,
+H_LINE_TO, 5,
+R_ARC_TO, 2, 2, 0, 0, 1, -2, -2,
+V_LINE_TO, 5,
+CLOSE,
+R_MOVE_TO, 2, 0,
+R_H_LINE_TO, 10,
+R_V_LINE_TO, 10,
+H_LINE_TO, 5,
+V_LINE_TO, 5,
+CLOSE