capture mode: Add string and icon for notification banner.

Bug: 1159111
Change-Id: I386eb512739a88b09b3703de400a03f7b77ba887
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2628036
Commit-Queue: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843258}

ash/ash_strings.grd

@@ -3207,7 +3207,10 @@ Here are some things you can try to get started.
         Screen capture
       </message>
       <message name="IDS_ASH_SCREEN_CAPTURE_SCREENSHOT_TITLE" desc="The title of the notificaton which shows after a screenshot is taken.">
-        Screenshot taken and saved to clipboard
+        Screenshot taken
+      </message>
+      <message name="IDS_ASH_SCREEN_CAPTURE_SCREENSHOT_COPIED_TO_CLIPBOARD" desc="The banner string shown above the notification which notifies the user that the screenshot has been copied to clipboard.">
+        Copied to clipboard
       </message>
       <message name="IDS_ASH_SCREEN_CAPTURE_RECORDING_TITLE" desc="The titile of the notification which shows after a screen recording is taken.">
         Screen recording taken

ash/ash_strings_grd/IDS_ASH_SCREEN_CAPTURE_SCREENSHOT_COPIED_TO_CLIPBOARD.png.sha1

+b785461babd9325f446ea476d87bbef5c638423e
\ No newline at end of file

ash/ash_strings_grd/IDS_ASH_SCREEN_CAPTURE_SCREENSHOT_TITLE.png.sha1

-ac998dc1c50f46552c283f30c1d784b214f3f799
\ No newline at end of file
+b785461babd9325f446ea476d87bbef5c638423e
\ No newline at end of file

ash/resources/vector_icons/BUILD.gn

@@ -30,6 +30,7 @@ aggregate_vector_icons("ash_vector_icons") {
     "battery.icon",
     "capture_mode.icon",
     "capture_mode_circle_stop.icon",
+    "capture_mode_copied_to_clipboard.icon",
     "capture_mode_feedback.icon",
     "capture_mode_fullscreen.icon",
     "capture_mode_image.icon",

ash/resources/vector_icons/capture_mode_copied_to_clipboard.icon

+// Copyright 2021 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, 15, 3,
+H_LINE_TO, 11.82f,
+CUBIC_TO, 11.4f, 1.84f, 10.3f, 1, 9, 1,
+CUBIC_TO, 7.7f, 1, 6.6f, 1.84f, 6.18f, 3,
+H_LINE_TO, 3,
+CUBIC_TO, 1.9f, 3, 1, 3.9f, 1, 5,
+V_LINE_TO, 16,
+CUBIC_TO, 1, 17.1f, 1.9f, 18, 3, 18,
+H_LINE_TO, 9,
+V_LINE_TO, 16,
+H_LINE_TO, 3,
+V_LINE_TO, 5,
+H_LINE_TO, 6,
+V_LINE_TO, 7,
+H_LINE_TO, 12,
+V_LINE_TO, 5,
+H_LINE_TO, 15,
+V_LINE_TO, 9,
+H_LINE_TO, 17,
+V_LINE_TO, 5,
+CUBIC_TO, 17, 3.9f, 16.1f, 3, 15, 3,
+CLOSE,
+MOVE_TO, 9, 3,
+CUBIC_TO, 9.55f, 3, 10, 3.45f, 10, 4,
+CUBIC_TO, 10, 4.55f, 9.55f, 5, 9, 5,
+CUBIC_TO, 8.45f, 5, 8, 4.55f, 8, 4,
+CUBIC_TO, 8, 3.45f, 8.45f, 3, 9, 3,
+CLOSE,
+MOVE_TO, 19.19f, 11.54f,
+LINE_TO, 13.54f, 17.19f,
+LINE_TO, 10, 13.66f,
+LINE_TO, 11.41f, 12.24f,
+LINE_TO, 13.54f, 14.36f,
+LINE_TO, 17.78f, 10.12f,
+LINE_TO, 19.19f, 11.54f,
+CLOSE