Adding tests for SelectFileDialog on Windows

Bug: 884075
Change-Id: I85829ee1e898296013c4ead98d4b9b39121a49d6
Reviewed-on: https://chromium-review.googlesource.com/c/1265121Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Robert Liao <robliao@chromium.org>
Commit-Queue: Patrick Monette <pmonette@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599264}

ui/shell_dialogs/BUILD.gn

@@ -120,4 +120,8 @@ test("shell_dialogs_unittests") {
   if (is_mac) {
     deps += [ ":shell_dialogs_unittests_bundle" ]
   }
+
+  if (is_win) {
+    deps += [ "//ui/strings:ui_strings_grit" ]
+  }
 }

ui/shell_dialogs/run_all_unittests.cc

@@ -4,17 +4,18 @@
 
 #include "base/bind.h"
 #include "base/macros.h"
+#include "base/path_service.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
 #include "build/build_config.h"
+#include "ui/base/material_design/material_design_controller.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/base/ui_base_paths.h"
 
 #if defined(OS_MACOSX)
 #include "base/files/file_path.h"
 #include "base/mac/bundle_locations.h"
-#include "base/path_service.h"
 #include "base/test/mock_chrome_application_mac.h"
-#include "ui/base/material_design/material_design_controller.h"
-#include "ui/base/resource/resource_bundle.h"
 #endif
 
 namespace {
@@ -47,17 +48,19 @@ void ShellDialogsTestSuite::Initialize() {
   path = path.Append(
       FILE_PATH_LITERAL("shell_dialogs_unittests_bundle.framework"));
   base::mac::SetOverrideFrameworkBundlePath(path);
+#endif
 
   // Setup resource bundle.
   ui::MaterialDesignController::Initialize();
+  ui::RegisterPathProvider();
   ui::ResourceBundle::InitSharedInstanceWithLocale(
       "en-US", nullptr, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
-#endif
 }
 
 void ShellDialogsTestSuite::Shutdown() {
-#if defined(OS_MACOSX)
   ui::ResourceBundle::CleanupSharedInstance();
+
+#if defined(OS_MACOSX)
   base::mac::SetOverrideFrameworkBundle(NULL);
 #endif
   base::TestSuite::Shutdown();