Add missing .h files to .gn files that have a .cc file next to it in the gn file already.

ui/base/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
@@ skipping 218 matching lines @@
     "nine_image_painter_factory.cc",
     "nine_image_painter_factory.h",
     "page_transition_types.cc",
     "page_transition_types.h",
     "platform_window_defaults.cc",
     "platform_window_defaults.h",
     "property_data.h",
     "resource/resource_bundle.cc",
     "resource/resource_bundle.h",
     "resource/resource_bundle_android.cc",
+    "resource/resource_bundle_android.h",
     "resource/resource_bundle_auralinux.cc",
     "resource/resource_bundle_ios.mm",
     "resource/resource_bundle_mac.mm",
     "resource/resource_bundle_win.cc",
     "resource/resource_bundle_win.h",
     "resource/resource_data_dll_win.cc",
     "resource/resource_data_dll_win.h",
     "template_expressions.cc",
     "template_expressions.h",
     "theme_provider.cc",
@@ skipping 384 matching lines @@
   }
 }
 
 static_library("test_support") {
   testonly = true
   sources = [
     "test/material_design_controller_test_api.cc",
     "test/material_design_controller_test_api.h",
     "test/ui_controls.h",
     "test/ui_controls_aura.cc",
+    "test/ui_controls_aura.h",
     "test/ui_controls_internal_win.cc",
     "test/ui_controls_internal_win.h",
     "test/ui_controls_mac.mm",
     "test/ui_controls_win.cc",
     "test/user_interactive_test_case.h",
   ]
 
   if (!is_ios) {
     sources += [
       "test/nswindow_fullscreen_notification_waiter.h",
@@ skipping 58 matching lines @@
       "ime/dummy_text_input_client.h",
     ]
 
     deps += [
       "//ui/base/ime",
       "//ui/events",
     ]
   }
 
   if (!use_aura) {
-    sources -= [ "test/ui_controls_aura.cc" ]
+    sources -= [
+      "test/ui_controls_aura.cc",
+      "test/ui_controls_aura.h",
+    ]
   } else if (is_win) {
     sources -= [ "test/ui_controls_win.cc" ]
   }
 }
 
 if (is_android) {
   generate_jni("ui_base_jni_headers") {
     sources = [
       "../android/java/src/org/chromium/ui/base/Clipboard.java",
       "../android/java/src/org/chromium/ui/base/DeviceFormFactor.java",
@@ skipping 256 matching lines @@
 if (is_mac) {
   mac_framework_bundle("ui_unittests_framework") {
     testonly = true
     deps = [
       "//ui/resources:ui_test_pak_bundle_data",
     ]
     info_plist = "test/framework-Info.plist"
     output_name = "ui_unittests Framework"
   }
 }