Update Background Fetch IDLs following spec changes

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchFetch.idl

Index: third_party/WebKit/Source/modules/background_fetch/BackgroundFetchFetch.idl
diff --git a/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchRequest.idl b/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchFetch.idl
similarity index 63%
rename from third_party/WebKit/Source/modules/background_fetch/BackgroundFetchRequest.idl
rename to third_party/WebKit/Source/modules/background_fetch/BackgroundFetchFetch.idl
index 011fca3840bd72627923e1883debb0668254b04d..c87e1568886408e2fb2936c85bcaf367f9ceffc0 100644
--- a/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchRequest.idl
+++ b/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchFetch.idl
@@ -2,13 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://wicg.github.io/background-fetch/#backgroundfetchfetches
-// TODO(peter): Update either the above link or the name of this interface based
-// on the outcome of https://github.com/WICG/background-fetch/issues/32.
+// https://wicg.github.io/background-fetch/#backgroundfetchfetch
 
 [
     Exposed=(Window,Worker),
     RuntimeEnabled=BackgroundFetch
-] interface BackgroundFetchRequest {
+] interface BackgroundFetchFetch {
     readonly attribute Request request;
 };