Adding logging of offstore extensions state to user metrics.

components/metrics/proto/system_profile.proto

Index: components/metrics/proto/system_profile.proto
diff --git a/components/metrics/proto/system_profile.proto b/components/metrics/proto/system_profile.proto
index 11453333049aaf7285be8f9bf017cc11220f32f8..c2e95e2d775fc29a8897d7a4d611cec717bc28d9 100644
--- a/components/metrics/proto/system_profile.proto
+++ b/components/metrics/proto/system_profile.proto
@@ -11,7 +11,7 @@ option optimize_for = LITE_RUNTIME;
 
 package metrics;
 
-// Next tag: 19
+// Next tag: 20
 message SystemProfileProto {
   // The time when the client was compiled/linked, in seconds since the epoch.
   optional int64 build_timestamp = 1;
@@ -507,4 +507,6 @@ message SystemProfileProto {
   // extensions.  If multiple extensions map to the same bucket, that bucket is
   // still only reported once.
   repeated int32 occupied_extension_bucket = 18;
+
+  optional bool has_offstore_extensions = 19;

[Alexei Svitkine (slow), 2014/08/11 15:01:58]

Can you make this an enum so that it's easier to add new states, in case we need
them?

Also, add a comment please.

[jwd, 2014/08/11 20:06:27]

Done.

 }