Prepare for building with enable_app_list=0 on Desktop

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index 72929f866a48cab519570a3c5249a91a6c4ce667..5474be5fcef43f00a48219a58c71868297ad68f5 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -621,7 +621,6 @@ if (!is_android) {
       "//sync",
       "//sync:test_support_sync_fake_server",
       "//sync:test_support_sync_testserver",
-      "//ui/app_list:test_support",
     ]
 
     if (is_mac) {
@@ -632,7 +631,9 @@ if (!is_android) {
         "../browser/sync/test/integration/dictionary_load_observer.h",
       ]
     }
-    if (!enable_app_list) {
+    if (enable_app_list) {
+      deps += [ "//ui/app_list:test_support" ]
+    } else {
       sources -= [
         "../browser/sync/test/integration/sync_app_list_helper.cc",
         "../browser/sync/test/integration/sync_app_list_helper.h",
@@ -1275,6 +1276,11 @@ if (!is_android) {
               chrome_tests_gypi_values.chrome_browser_tests_app_list_sources,
               ".",
               "//chrome")
+      if (is_mac) {
+        # This assumes the AppList is views-based.
+        sources -=
+            [ "../browser/ui/app_list/app_list_service_views_browsertest.cc" ]
+      }
     }
     if (enable_service_discovery) {
       sources += rebase_path(
@@ -2141,6 +2147,10 @@ test("unit_tests") {
             chrome_tests_unit_gypi_values.chrome_unit_tests_app_list_sources,
             ".",
             "//chrome")
+    if (is_mac) {
+      # This assumes the AppList is views-based.
+      sources -= [ "../browser/ui/app_list/app_list_shower_views_unittest.cc" ]
+    }
     deps += [ "//ui/app_list:test_support" ]
   }
   if (enable_app_list && is_chromeos) {
@@ -2148,6 +2158,8 @@ test("unit_tests") {
             chrome_tests_unit_gypi_values.chrome_unit_tests_app_list_chromeos_sources,
             ".",
             "//chrome")
+    sources -=
+        [ "../browser/ui/views/app_list/linux/app_list_linux_unittest.cc" ]
     sources += rebase_path(
             chrome_tests_unit_gypi_values.chrome_unit_tests_app_list_chromeos_arc_sources,
             ".",