Make more of content pass "gn check"

content/public/app/BUILD.gn

Index: content/public/app/BUILD.gn
diff --git a/content/public/app/BUILD.gn b/content/public/app/BUILD.gn
index aade0abbc5095e4740228117eef54f287ecb437d..df5e5d34589c6e65433254f5ae9272b31e299e5a 100644
--- a/content/public/app/BUILD.gn
+++ b/content/public/app/BUILD.gn
@@ -36,6 +36,10 @@ public_app_shared_deps = [
   "//base:i18n",
   "//content:export",
   "//content/public/common:common_sources",
+  "//content/public/gpu:gpu_sources",

[Dirk Pranke, 2016/03/21 19:08:10]

It seems a bit confusing to have a target called '*_sources' that only contains
headers.  Of course, some of the _sources targets do actually contain sources,
but do we have a policy on calling something _sources vs _headers?

[brettw, 2016/03/21 20:44:27]

No but this follows the content naming scheme where there are targets called
//content/public/foo for public deps, and //content/public/foo:foo_sources for
internal ones (so the component build works).

The fact that the GPU one has no actual source files is incidental to this
scheme.

+  "//content/public/plugin:plugin_sources",
+  "//content/public/renderer:renderer_sources",
+  "//content/public/utility:utility_sources",
 ]
 
 if (is_component_build) {