bluetooth: Create bluetooth_metrics_hash tool.

content/browser/bluetooth/tools/BUILD.gn

Index: content/browser/bluetooth/tools/BUILD.gn
diff --git a/chrome/cdb.isolate b/content/browser/bluetooth/tools/BUILD.gn
similarity index 53%
copy from chrome/cdb.isolate
copy to content/browser/bluetooth/tools/BUILD.gn
index 0b2f14afe08beee29ad16521c397f20de05023c4..91c264ab391a34e083a9b14347adf168f2c100ed 100644
--- a/chrome/cdb.isolate
+++ b/content/browser/bluetooth/tools/BUILD.gn
@@ -1,14 +1,14 @@
 # Copyright (c) 2016 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.
-{
-  'conditions': [
-    ['OS=="win"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/cdb/',
-        ],
-      },
-    }],
-  ],
+
+executable("bluetooth_metrics_hash") {
+  sources = [
+    "bluetooth_metrics_hash.cc",
+  ]
+
+  deps = [
+    "//base",
+    "//device/bluetooth",
+  ]
 }