chrome_cleaner: ensure internal targets are reachable from :gn_all.

Bug: 984162, 1004848
Change-Id: Ibb7c47f0188de8e077cd30aa8d68ca61133d2037
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1904549
Commit-Queue: John Budorick <jbudorick@chromium.org>
Reviewed-by: Joe Mason <joenotcharles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713683}

BUILD.gn

@@ -608,7 +608,7 @@ group("gn_all") {
   if (is_win) {
     deps += [
       "//base:pe_image_test",
-      "//chrome/chrome_cleaner:chrome_cleaner_unittests",
+      "//chrome/chrome_cleaner",
       "//chrome/chrome_elf:chrome_elf_unittests",
       "//chrome/chrome_elf:dll_hash_main",
       "//chrome/elevation_service:elevation_service_unittests",

chrome/chrome_cleaner/BUILD.gn

@@ -64,9 +64,6 @@ static_library("other_executable_definitions") {
 }
 
 test("chrome_cleaner_unittests") {
-  # Make this target findable from the "all" target used by the builders.
-  visibility += [ "//.:gn_all" ]
-
   sources = [
     "//chrome/chrome_cleaner/test/test_main.cc",
   ]
@@ -126,3 +123,23 @@ test("chrome_cleaner_unittests") {
     ]
   }
 }
+
+group("chrome_cleaner") {
+  testonly = true
+
+  # Make this target findable from the "all" target used by the builders.
+  visibility += [ "//.:gn_all" ]
+
+  deps = [
+    ":chrome_cleaner_unittests",
+    "//chrome/chrome_cleaner/executables:chrome_cleanup_tool",
+    "//chrome/chrome_cleaner/executables:software_reporter_tool",
+  ]
+
+  if (is_internal_chrome_cleaner_build) {
+    deps += [
+      "${chrome_cleaner_internal_root}:build_targets",
+      "${chrome_cleaner_internal_root}:test_targets",
+    ]
+  }
+}