WebView: Add channel info for UMA

components/version_info/channel_android.cc

+// 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.
+
+#include "components/version_info/channel_android.h"
+
+#include <cstring>
+
+namespace version_info {
+
+Channel ChannelFromPackageName(const char* name) {
+  if (!strcmp(name, "com.android.chrome") || !strcmp(name, "com.chrome.work"))
+    return Channel::STABLE;
+  if (!strcmp(name, "com.chrome.beta"))
+    return Channel::BETA;
+  if (!strcmp(name, "com.chrome.dev"))
+    return Channel::DEV;
+  if (!strcmp(name, "com.chrome.canary"))
+    return Channel::CANARY;
+
+  return Channel::UNKNOWN;
+}
+
+}  // namespace version_info