api: trivial cleanups. (#42)

* Remove unused imports.

* Some _ms/Duration stragglers.

api/base.proto

@@ -4,9 +4,7 @@ package envoy.api.v2;
 
 import "api/address.proto";
 
-import "google/protobuf/duration.proto";
 import "google/protobuf/struct.proto";
-import "google/protobuf/wrappers.proto";
 
 // Identifies location of where either Envoy runs or where upstream hosts run.
 message Locality {

api/cds.proto

@@ -176,8 +176,8 @@ message Cluster {
     // for any host in the cluster. Defaults to 5.
     google.protobuf.UInt32Value success_rate_minimum_hosts = 7;
     // The minimum number of total requests that must be collected in one
-    // interval (as defined by interval_ms above) to include this host in
-    // success rate based outlier detection. If the volume is lower than this
+    // interval (as defined by the interval duration above) to include this host
+    // in success rate based outlier detection. If the volume is lower than this
     // setting, outlier detection via success rate statistics is not performed
     // for that host. Defaults to 100.
     google.protobuf.UInt32Value success_rate_request_volume = 8;

api/health_check.proto

@@ -2,8 +2,6 @@ syntax = "proto3";
 
 package envoy.api.v2;
 
-import "api/base.proto";
-
 import "google/protobuf/duration.proto";
 import "google/protobuf/wrappers.proto";
 

api/rds.proto

@@ -9,6 +9,7 @@ package envoy.api.v2;
 import "api/base.proto";
 
 import "google/api/annotations.proto";
+import "google/protobuf/duration.proto";
 import "google/protobuf/struct.proto";
 import "google/protobuf/wrappers.proto";
 
@@ -156,7 +157,7 @@ message ForwardAction {
   // Note that this timeout includes all retries. See also
   // x-envoy-upstream-rq-timeout-ms, x-envoy-upstream-rq-per-try-timeout-ms, and
   // the retry overview.
-  google.protobuf.UInt32Value timeout_ms = 7;
+  google.protobuf.Duration timeout = 7;
 
   message RetryPolicy {
     // Specifies the conditions under which retry takes place. These are the
@@ -169,7 +170,7 @@ message ForwardAction {
     // Specifies a non-zero timeout per retry attempt. This parameter is
     // optional. The same conditions documented for
     // x-envoy-upstream-rq-per-try-timeout-ms apply.
-    google.protobuf.UInt32Value per_try_timeout_ms = 3;
+    google.protobuf.Duration per_try_timeout = 3;
   }
   // Indicates that the route has a retry policy.
   RetryPolicy retry_policy = 8;