[CrOS Cellular] Make url.mojom-lite.js a shared resource.

This CL shares url.mojom-lite.js from chrome://resources and updates
relevant clients to refer to the shared resource instead of packaging
the resource individually for each page.

This is in preparation for utilizing url.mojom-lite.js in the cellular
activation dialog.

Bug: 953400
Change-Id: Ifd18cf7598d426fbe3deba87760d5d4f80008ccb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1570253
Reviewed-by: Nasko Oskov <[email protected]>
Reviewed-by: calamity <[email protected]>
Commit-Queue: Kyle Horimoto <[email protected]>
Auto-Submit: Kyle Horimoto <[email protected]>
Cr-Commit-Position: refs/heads/master@{#653032}
diff --git a/content/BUILD.gn b/content/BUILD.gn
index 594b6d4..170eb3e 100644
--- a/content/BUILD.gn
+++ b/content/BUILD.gn
@@ -116,6 +116,8 @@
 
   outputs = [
     "grit/content_resources.h",
+    "grit/content_resources_map.cc",
+    "grit/content_resources_map.h",
     "content_resources.pak",
   ]
   grit_flags = [