Fixing and enabling dependency checks for chromedriver

Since we had a bug because of this missing check, let's not
repeat it.

Bug: 949535
Change-Id: Ic3ef619403dfcc3ecb8ffecd5f1e2cc80681dc94
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1552830
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Auto-Submit: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#653249}

.gn

@@ -77,6 +77,8 @@ check_targets = [
   "//buildtools/*",
   "//cc/*",
 
+  #"//chrome/*",          # Many errors: https://crbug.com/949535
+
   #"//chrome/android/*",  # 13 errors
   "//chrome/app/*",
   "//chrome/app_shim/*",
@@ -243,7 +245,8 @@ check_targets = [
   #"//chrome/renderer/*",  # ~30 errors
   #"//chrome/service/*",  # 2 errors
   #"//chrome/services/*",  # ~30 errors
-  #"//chrome/test/*",  # ~3000 errors
+  #"//chrome/test/*",  # ~1900 errors
+  "//chrome/test/chromedriver",
   "//chrome/third_party/*",
   "//chrome/tools/*",
   "//chrome/utility/*",

chrome/test/chromedriver/BUILD.gn

@@ -304,6 +304,7 @@ source_set("lib") {
 }
 
 executable("chromedriver") {
+  testonly = true
   sources = [
     "server/chromedriver_server.cc",
   ]
@@ -315,6 +316,8 @@ executable("chromedriver") {
     ":lib",
     "//build/win:default_exe_manifest",
     "//mojo/core/embedder",
+    "//net/server:http_server",
+    "//net/traffic_annotation:test_support",
     "//services/network/public/mojom",
   ]
 }