[ash-md] Updated the system tray/menu update icon.

The update icon in the system tray was small and blurry on 1x displays.

BUG=643401

Review-Url: https://codereview.chromium.org/2595623002
Cr-Commit-Position: refs/heads/master@{#439843}

ash/resources/vector_icons/system_tray_update.1x.icon

@@ -4,16 +4,18 @@
 
 CANVAS_DIMENSIONS, 16,
 MOVE_TO, 8, 14,
-ARC_TO, 6, 6, 0, 1, 0, 8, 2,
-R_ARC_TO, 6, 6, 0, 0, 0, 0, 12,
+R_CUBIC_TO, 3.31f, 0, 6, -2.69f, 6, -6,
+R_CUBIC_TO, 0, -3.31f, -2.69f, -6, -6, -6,
+R_CUBIC_TO, -3.31f, 0, -6, 2.69f, -6, 6,
+R_CUBIC_TO, 0, 3.31f, 2.69f, 6, 6, 6,
 CLOSE,
-R_MOVE_TO, -1, -3,
-R_H_LINE_TO, 2,
+R_MOVE_TO, -1.85f, -2,
+R_H_LINE_TO, 3.69f,
 V_LINE_TO, 9,
-R_H_LINE_TO, 2,
-LINE_TO, 8, 5,
-LINE_TO, 5, 9,
-R_H_LINE_TO, 2,
-R_V_LINE_TO, 2,
+H_LINE_TO, 12.5f,
+LINE_TO, 8, 4,
+LINE_TO, 3.5f, 9,
+R_H_LINE_TO, 2.65f,
+R_V_LINE_TO, 3,
 CLOSE,
 END

ash/resources/vector_icons/system_tray_update.icon

@@ -5,17 +5,17 @@
 CANVAS_DIMENSIONS, 32,
 MOVE_TO, 16, 29,
 R_CUBIC_TO, 7.18f, 0, 13, -5.82f, 13, -13,
-CUBIC_TO, 29, 8.82f, 23.18f, 3, 16, 3,
-CUBIC_TO, 8.82f, 3, 3, 8.82f, 3, 16,
+CUBIC_TO_SHORTHAND, 23.18f, 3, 16, 3,
+CUBIC_TO_SHORTHAND, 3, 8.82f, 3, 16,
 R_CUBIC_TO, 0, 7.18f, 5.82f, 13, 13, 13,
 CLOSE,
-R_MOVE_TO, -3, -7,
-R_H_LINE_TO, 6,
-R_V_LINE_TO, -5,
-R_H_LINE_TO, 3,
-R_LINE_TO, -6, -7,
-R_LINE_TO, -6, 7,
-R_H_LINE_TO, 3,
-R_V_LINE_TO, 5,
+R_MOVE_TO, -4, -5,
+R_H_LINE_TO, 8,
+R_V_LINE_TO, -6,
+R_H_LINE_TO, 5,
+LINE_TO, 16, 8,
+LINE_TO, 7, 18,
+R_H_LINE_TO, 5,
+R_V_LINE_TO, 6,
 CLOSE,
 END