bluetooth: Add RSSI icon for bluetooth choosers.

chrome/android/java/res/drawable/ic_signal_cellular_0_bar.xml

Index: chrome/android/java/res/drawable/ic_signal_cellular_0_bar.xml
diff --git a/chrome/android/java/res/drawable/ic_signal_cellular_0_bar.xml b/chrome/android/java/res/drawable/ic_signal_cellular_0_bar.xml
new file mode 100644
index 0000000000000000000000000000000000000000..4ae9f470c92cf759597ce24e0212ce41bf944a1d
--- /dev/null
+++ b/chrome/android/java/res/drawable/ic_signal_cellular_0_bar.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2017 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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M2,22h20V2z"
+        android:fillAlpha=".3"
+        android:fillColor="#757575"/>

[David Trainor- moved to gerrit, 2017/04/19 21:29:20]

@color/google_grey_600 for all of these?

[ortuno, 2017/04/19 22:47:23]

Done.

+</vector>