components: Fix 'gn check' errors for autofill.

Tested on Linux with the following command lines:

$ gn gen out-gn/Debug
$ gn check out-gn/Debug //components/autofill/*

BUG=367595, 376000
TEST=see above
R=brettw@chromium.org,isherman@chromium.org

Review URL: https://codereview.chromium.org/1206643002

Cr-Commit-Position: refs/heads/master@{#335748}

.gn

@@ -33,6 +33,7 @@ check_targets = [
   "//cloud_print/*",
 
   #"//components/*",  # Lots of errors.
+  "//components/autofill/*",
   "//components/bookmarks/*",
   "//components/pref_registry/*",
   "//components/undo/*",

components/autofill/content/common/BUILD.gn

@@ -18,6 +18,7 @@ static_library("common") {
     "//ipc",
     "//third_party/WebKit/public:blink_minimal",
     "//ui/gfx",
+    "//ui/gfx/geometry",
     "//ui/gfx/ipc",
     "//url",
   ]

components/autofill/core/browser/BUILD.gn

@@ -143,9 +143,12 @@ static_library("browser") {
     "//components/keyed_service/core",
     "//components/os_crypt",
     "//components/pref_registry",
+    "//components/rappor",
     "//components/resources",
+    "//components/signin/core/browser",
     "//components/signin/core/common",
     "//components/strings",
+    "//components/sync_driver",
     "//components/webdata/common",
     "//google_apis",
     "//net",
@@ -202,9 +205,13 @@ static_library("test_support") {
     "//components/os_crypt",
     "//components/pref_registry",
     "//components/rappor",
+    "//components/rappor:test_support",
+    "//components/signin/core/browser",
+    "//components/signin/core/common",
     "//google_apis:test_support",
     "//skia",
     "//testing/gtest",
+    "//ui/gfx/geometry",
   ]
 }
 
@@ -249,15 +256,22 @@ source_set("unit_tests") {
     ":test_support",
     "//base",
     "//base:prefs",
+    "//base:prefs_test_support",
     "//base/test:test_support",
     "//components/autofill/core/common",
     "//components/os_crypt",
     "//components/rappor:test_support",
     "//components/resources",
+    "//components/signin/core/browser",
     "//components/signin/core/browser:test_support",
+    "//components/signin/core/common",
     "//components/strings",
     "//components/sync_driver",
+    "//components/variations",
     "//components/webdata/common",
+    "//components/webdata_services:test_support",
+    "//google_apis",
+    "//google_apis:test_support",
     "//net:test_support",
     "//sql",
     "//sync",

components/autofill/core/common/BUILD.gn

@@ -65,6 +65,7 @@ source_set("unit_tests") {
     ":common",
     "//base",
     "//base:i18n",
+    "//components/autofill/core/browser",
     "//testing/gmock",
     "//testing/gtest",
     "//url",