Add wrappers for the module module

service/module/context.go

Index: service/module/context.go
diff --git a/service/info/context.go b/service/module/context.go
similarity index 78%
copy from service/info/context.go
copy to service/module/context.go
index 21d5000b420580c15a10b2a24715856df57e4964..699eb90ee31b162e6fdd9d94dea9df6e584d91d9 100644
--- a/service/info/context.go
+++ b/service/module/context.go
@@ -1,8 +1,8 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package info
+package module
 
 import (
 	"golang.org/x/net/context"
@@ -11,23 +11,23 @@ import (
 type key int
 
 var (
-	infoKey       key
-	infoFilterKey key = 1
+	moduleKey       key
+	moduleFilterKey key = 1
 )
 
 // Factory is the function signature for factory methods compatible with
 // SetFactory.
 type Factory func(context.Context) Interface
 
-// Filter is the function signature for a filter GI implementation. It
-// gets the current GI implementation, and returns a new GI implementation
+// Filter is the function signature for a filter module implementation. It gets
+// the current module implementation, and returns a new module implementation
 // backed by the one passed in.
 type Filter func(context.Context, Interface) Interface
 
 // getUnfiltered gets gets the Interface implementation from context without
 // any of the filters applied.
 func getUnfiltered(c context.Context) Interface {
-	if f, ok := c.Value(infoKey).(Factory); ok && f != nil {
+	if f, ok := c.Value(moduleKey).(Factory); ok && f != nil {
 		return f(c)
 	}
 	return nil
@@ -48,7 +48,7 @@ func Get(c context.Context) Interface {
 // SetFactory sets the function to produce Interface instances, as returned
 // by the Get method.
 func SetFactory(c context.Context, gif Factory) context.Context {
-	return context.WithValue(c, infoKey, gif)
+	return context.WithValue(c, moduleKey, gif)
 }
 
 // Set sets the current Interface object in the context. Useful for testing
@@ -59,7 +59,7 @@ func Set(c context.Context, gi Interface) context.Context {
 }
 
 func getCurFilters(c context.Context) []Filter {
-	curFiltsI := c.Value(infoFilterKey)
+	curFiltsI := c.Value(moduleFilterKey)
 	if curFiltsI != nil {
 		return curFiltsI.([]Filter)
 	}
@@ -75,5 +75,5 @@ func AddFilters(c context.Context, filts ...Filter) context.Context {
 	newFilts := make([]Filter, 0, len(cur)+len(filts))
 	newFilts = append(newFilts, getCurFilters(c)...)
 	newFilts = append(newFilts, filts...)
-	return context.WithValue(c, infoFilterKey, newFilts)
+	return context.WithValue(c, moduleFilterKey, newFilts)
 }