Adding version info to the client config request

components/data_reduction_proxy/proto/client_config.proto

Index: components/data_reduction_proxy/proto/client_config.proto
diff --git a/components/data_reduction_proxy/proto/client_config.proto b/components/data_reduction_proxy/proto/client_config.proto
index 98cc093e0d4b565d1ce9fd9d9a305ab70c243761..9ee9064ac84dfe5001f72ecc5182c8d7181cefe6 100644
--- a/components/data_reduction_proxy/proto/client_config.proto
+++ b/components/data_reduction_proxy/proto/client_config.proto
@@ -102,11 +102,31 @@ message ProxyServer {
   // The host name for the proxy server.
   optional string host = 2;
   // The port number for the proxy server.
   optional int32 port = 3;
 }
 
 // Request object to create a client configuration object.
 message CreateClientConfigRequest {
   // A previous per-session key that was assigned by the service.
   optional string session_key = 1;
+
+  // Build version information.
+  optional VersionInfo version_info = 2;
 }
+
+// Build version information.
+message VersionInfo {
+  // The client's platform type. See
+  // components/data_reduction_proxy/core/common/data_reduction_proxy_util.h for
+  // allowed strings in CLIENT_ENUMS_LIST.
+  optional string client = 1;
+
+  // The version number, e.g. "6.0.490.1".

[tbansal1, 2016/06/29 17:58:26]

I do not understand this comment. From the example, the version number seems
like a string, but it is actually an int32.

[RyanSturm, 2016/06/29 19:02:35]

Done.

+  optional int32 build = 2;
+
+  // The patch number of the chromium client: always a non-negative integer.
+  optional int32 patch = 3;
+
+  // The production channel.

[buettner, 2016/06/29 18:04:44]

Maybe it's clear enough to Chromium developers, but you may want to add, "E.g.,
Dev, Beta, Stable, etc."

[RyanSturm, 2016/06/29 19:02:35]

Done.

+  optional string channel = 4;
+}