Adding the Copresence RpcHandler and HttpPost helper.

components/copresence/proto/data.proto

 syntax = "proto2";
 package copresence;
 option optimize_for = LITE_RUNTIME;
 import "enums.proto";
 import "identity.proto";
 message ClientVersion {
   optional string client = 1;
   optional string version_name = 2;
   optional int64 version_code = 3;
   optional string certificate_fingerprint = 4;
 }
 message Status {
   optional StatusCode code = 1;
   optional string message = 2;
 }
-message DeviceRegistration {
-  optional PushService service = 1 [deprecated = true];
-  optional string device_token = 2 [deprecated = true];
-  optional DeviceIdentity device_identity = 3 [deprecated = true];
-  optional string app_name = 4 [deprecated = true];
-  optional bytes device_token_binary = 5 [deprecated = true];
-  optional string registered_device_id = 6 [deprecated = true];
-  optional int32 ulr_device_id = 7 [deprecated = true];
-  optional Identity registrant = 8 [deprecated = true];
-}
 message PushServiceRegistration {
   optional PushService service = 1;
 }
 message DeviceIdentifiers {
   optional int32 ulr_device_id = 1;
   optional DeviceIdentity device_identity = 2;
   optional Identity registrant = 3;
 }
 message Token {
   message Debug {
     repeated string email = 2;
-    extensions 1 to 1;
   }
   optional string id = 1;
-  optional uint32 ttl_millis_deprecated = 2 [deprecated = true];
   optional TokenStatus status = 3;
   optional Debug debug = 4;
 }
 message TokenTechnology {
   optional TokenMedium medium = 1;
   repeated TokenInstructionType instruction_type = 2;
 }
 message DeviceCapabilities {
   repeated TokenTechnology token_technology = 2;
 }
 message TokenInstruction {
   optional TokenInstructionType token_instruction_type = 1;
   optional TokenMedium medium = 2;
   optional string token_id = 4;
 }
 message Directive {
   optional InstructionType instruction_type = 1;
   optional TokenInstruction token_instruction = 2;
   optional int64 delay_millis = 3;
   optional int64 ttl_millis = 4;
   optional string published_message_id = 5;
   optional string subscription_id = 6;
 }
 message DeviceState {
   optional DeviceCapabilities capabilities = 1;
   repeated Directive active_directive = 2;
 }
 message DebugInfo {
   optional string served_by_task = 1;
-  optional bool listen_initiated_by_location_deprecated = 2 [deprecated = true];
   repeated string token_id = 3;
   optional int64 request_time_millis = 4;
 }
 message TokenObservation {
   optional string token_id = 1;
   repeated TokenSignals signals = 2;
 }
 message TokenSignals {
   optional TokenMedium medium = 1;
   optional int32 rssi = 2;
   optional int64 observed_time_millis = 3;
 }
 message AccessPolicy {
   optional int64 ttl_millis = 1;
   optional Acl acl = 2;
-  extensions 4 to 4;
 }
 message Acl {
   optional AclType acl_type = 1;
   optional string named_acl_name = 2;
   optional bytes referenced_acl_consistency_token = 5;
 }
 message PublishedMessage {
   optional string id = 1;
   optional AccessPolicy access_policy = 2;
   optional Message message = 3;
@@ skipping 28 matching lines @@
   optional string type = 2;
 }
 message Subscription {
   optional string id = 1;
   optional TransmissionStrategy strategy = 2;
   optional int64 ttl_millis = 3;
   optional MessageType message_type = 4;
   optional TokenExchangeStrategy token_exchange_strategy = 7;
   optional OptInStateFilter opt_in_state_filter = 8;
 }
-message DeleteAll {
-  optional DeleteAllType type = 1;
-  repeated string namespace = 2;
-}
 message MessageResult {
   optional string published_message_id = 1;
 }
 message SubscriptionResult {
   optional string subscription_id = 1;
 }
 message OptInStateFilter {
   repeated OptInState allowed_opt_in_state = 1;
 }