bluetooth: Create bluetooth_metrics_hash tool.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index d89ba2cf03c3985fb25302d1c9f302b8b70f4620..04d376b1526e60ec5d36ecf8e4bbc896bd04a2d4 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -620,6 +620,10 @@ group("gn_only") {
     deps += [ "//mojo/common:mojo_common_perftests" ]
   }
 
+  if (!is_android && !is_ios) {

[Dirk Pranke, 2016/04/24 20:23:03]

nit: you might want && !is_chromeos here also.

[scheib, 2016/04/25 19:18:27]

I considered. So, it works on chromeos builds (at least if it's only target_os =
"chromeos", and not any architecture changes). And, e.g. I only run android and
chromeos builds locally, so it's nice to keep it working.

+    deps += [ "//content/browser/bluetooth/tools:bluetooth_metrics_hash" ]
+  }
+
   if (!is_android && !is_ios && !is_chromeos) {
     deps += [ "//components/proximity_auth:proximity_auth_unittests" ]
   }