Fix guest avatar transparent border and size.

This CL removes the transparent border around the guest avatar icon
in the chip menu.

Background: Guest mode avatar had a transparent border which made
the image size in the menu 60x60, while expected to be 64x64.

After removing the transparent border, the image is resized to its
original intended size 64x64.

Screenshots:
https://screenshot.googleplex.com/BRMVUP8VuSo7wnk.png

Bug: 1123472, 1105763
Change-Id: I4b28840f68685e6667c61f18ea8278f3d4e62ecf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2403463Reviewed-by: Evan Stade <estade@chromium.org>
Reviewed-by: Ramin Halavati <rhalavati@chromium.org>
Commit-Queue: Mariam Ali <alimariam@google.com>
Cr-Commit-Position: refs/heads/master@{#806072}

chrome/app/vector_icons/user_account_avatar.icon

@@ -2,22 +2,22 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-CANVAS_DIMENSIONS, 40,
-MOVE_TO, 20.52f, 3,
-CUBIC_TO, 10.62f, 3, 3, 10.62f, 3, 20.52f,
-CUBIC_TO, 3, 29.39f, 10.62f, 37, 20.52f, 37,
-CUBIC_TO, 29.39f, 37, 37, 29.38f, 37, 20.52f,
-CUBIC_TO, 37, 10.62f, 29.38f, 3, 20.52f, 3,
+CANVAS_DIMENSIONS, 64,
+MOVE_TO, 32, 0,
+CUBIC_TO, 14.34f, 0, 0, 14.34f, 0, 32,
+CUBIC_TO, 0, 49.66f, 14.34f, 64, 32, 64,
+CUBIC_TO, 49.66f, 64, 64, 49.66f, 64, 32,
+CUBIC_TO, 64, 14.34f, 49.66f, 0, 32, 0,
 CLOSE,
-R_MOVE_TO, 0, 5.15f,
-R_CUBIC_TO, 2.85f, 0, 5.15f, 2.3f, 5.15f, 5.15f,
-R_CUBIC_TO, 0, 2.85f, -2.3f, 5.15f, -5.15f, 5.15f,
-R_CUBIC_TO, -2.85f, 0, -5.15f, -2.3f, -5.15f, -5.15f,
-R_CUBIC_TO, 0, -2.85f, 2.3f, -5.15f, 5.15f, -5.15f,
+MOVE_TO, 32, 9.6f,
+CUBIC_TO, 37.31f, 9.6f, 41.6f, 13.89f, 41.6f, 19.2f,
+CUBIC_TO, 41.6f, 24.51f, 37.31f, 28.8f, 32, 28.8f,
+CUBIC_TO, 26.69f, 28.8f, 22.4f, 24.51f, 22.4f, 19.2f,
+CUBIC_TO, 22.4f, 13.89f, 26.69f, 9.6f, 32, 9.6f,
 CLOSE,
-R_MOVE_TO, 0, 23.7f,
-R_CUBIC_TO, -4.29f, 0, -8.09f, -2.09f, -10.3f, -5.15f,
-R_CUBIC_TO, 0.05f, -3.37f, 6.87f, -5.15f, 10.3f, -5.15f,
-R_CUBIC_TO, 3.42f, 0, 10.25f, 1.78f, 10.3f, 5.15f,
-R_CUBIC_TO, -2.21f, 3.06f, -6.01f, 5.15f, -10.3f, 5.15f,
+MOVE_TO, 32, 55.04f,
+CUBIC_TO, 24, 55.04f, 16.93f, 50.94f, 12.8f, 44.74f,
+CUBIC_TO, 12.9f, 38.37f, 25.6f, 34.88f, 32, 34.88f,
+CUBIC_TO, 38.37f, 34.88f, 51.1f, 38.37f, 51.2f, 44.74f,
+CUBIC_TO, 47.07f, 50.94f, 40, 55.04f, 32, 55.04f,
 CLOSE