Replace java_files with sources in //components

Replace usages of java_files with sources in above directory's gn files,
and automatically format.

Bug: 1035074
Change-Id: I3862d89fd6a381c061868af75e4d24dd8e66a2eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1976704
Commit-Queue: Natalie Chouinard <[email protected]>
Reviewed-by: Nico Weber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#727025}
diff --git a/components/gcm_driver/instance_id/android/BUILD.gn b/components/gcm_driver/instance_id/android/BUILD.gn
index 2f17143..292349e 100644
--- a/components/gcm_driver/instance_id/android/BUILD.gn
+++ b/components/gcm_driver/instance_id/android/BUILD.gn
@@ -29,7 +29,7 @@
   srcjar_deps =
       [ "//components/gcm_driver/instance_id:instance_id_java_enums_srcjar" ]
 
-  java_files = [
+  sources = [
     "java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java",
     "java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDWithSubtype.java",
   ]
@@ -42,5 +42,7 @@
     "//base:base_java",
   ]
 
-  java_files = [ "javatests/src/org/chromium/components/gcm_driver/instance_id/FakeInstanceIDWithSubtype.java" ]
+  sources = [
+    "javatests/src/org/chromium/components/gcm_driver/instance_id/FakeInstanceIDWithSubtype.java",
+  ]
 }