Enables to build chrome for ChromeOS on GN.

BUG=None
[email protected], [email protected]
[email protected], [email protected]
TEST=manually

Review URL: https://codereview.chromium.org/653273002

Cr-Commit-Position: refs/heads/master@{#299641}
diff --git a/chrome/browser/extensions/BUILD.gn b/chrome/browser/extensions/BUILD.gn
index 3caec7d0..41c800ac 100644
--- a/chrome/browser/extensions/BUILD.gn
+++ b/chrome/browser/extensions/BUILD.gn
@@ -86,7 +86,7 @@
     deps += [
       "//third_party/libevent",
       "//third_party/protobuf:protobuf_lite",
-      #'../chromeos/ime/input_method.gyp:gencode',  TODO(GYP)
+      "//chromeos/ime:gencode",
     ]
   } else {
     sources += [