Change UMA proto product field to be an int32.

components/metrics/metrics_service_client.h

Index: components/metrics/metrics_service_client.h
diff --git a/components/metrics/metrics_service_client.h b/components/metrics/metrics_service_client.h
index 465cb01fe67dc80c757c9e702c2ade196131303a..98b41ce4b96d2754e94fba5cf9d0534e42a88128 100644
--- a/components/metrics/metrics_service_client.h
+++ b/components/metrics/metrics_service_client.h
@@ -30,6 +30,11 @@ class MetricsServiceClient {
   // Whether there's an "off the record" (aka "Incognito") session active.
   virtual bool IsOffTheRecordSessionActive() = 0;
 
+  // Returns the product value to use in uploaded reports, which will be used to
+  // set the ChromeUserMetricsExtension.product field. See comments on that
+  // field on why it's an int32 rather than an enum.
+  virtual int32 GetProduct() = 0;

[Ilya Sherman, 2014/09/25 18:29:55]

According to basictypes.h, we should use int32_t instead of the
Chromium-specific int32 typedef.

[Alexei Svitkine (slow), 2014/09/26 16:51:09]

Done.

+
   // Returns the current application locale (e.g. "en-US").
   virtual std::string GetApplicationLocale() = 0;