Make views_mus_unittests use a static manifest

Extracted from https://codereview.chromium.org/1910043002/ to help identify an issue.

TBR=sky@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1918343002

Cr-Commit-Position: refs/heads/master@{#389828}

ui/views/mus/BUILD.gn

@@ -5,6 +5,7 @@
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//mojo/public/mojo_application.gni")
+import("//mojo/public/mojo_application_manifest.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
 
@@ -195,6 +196,7 @@ test("views_mus_unittests") {
   ]
 
   data_deps = [
+    ":unittests_manifest",
     "//mash/wm",
   ]
 
@@ -230,6 +232,12 @@ test("views_mus_unittests") {
   }
 }
 
+mojo_application_manifest("unittests_manifest") {
+  type = "exe"
+  application_name = "views_mus_unittests"
+  source = "unittests_manifest.json"
+}
+
 group("for_component") {
   public_deps = [
     ":mus",

ui/views/mus/platform_test_helper_mus.cc

@@ -20,7 +20,7 @@ using shell::BackgroundShell;
 namespace views {
 namespace {
 
-const char kTestName[] = "mojo:test-app";
+const char kTestName[] = "exe:views_mus_unittests";
 
 class DefaultShellClient : public shell::ShellClient {
  public:
@@ -31,20 +31,11 @@ class DefaultShellClient : public shell::ShellClient {
   DISALLOW_COPY_AND_ASSIGN(DefaultShellClient);
 };
 
-std::unique_ptr<shell::TestCatalogStore> BuildTestCatalogStore() {
-  std::unique_ptr<base::ListValue> apps(new base::ListValue);
-  apps->Append(shell::BuildPermissiveSerializedAppInfo(kTestName, "test"));
-  return base::WrapUnique(new shell::TestCatalogStore(std::move(apps)));
-}
-
 class PlatformTestHelperMus : public PlatformTestHelper {
  public:
   PlatformTestHelperMus() {
     background_shell_.reset(new BackgroundShell);
-    std::unique_ptr<BackgroundShell::InitParams> init_params(
-        new BackgroundShell::InitParams);
-    init_params->catalog_store = BuildTestCatalogStore();
-    background_shell_->Init(std::move(init_params));
+    background_shell_->Init(nullptr);
     shell_client_.reset(new DefaultShellClient);
     shell_connection_.reset(new shell::ShellConnection(
         shell_client_.get(),

ui/views/mus/unittests_manifest.json

+{
+  "manifest_version":  1,
+  "name": "mojo:views_mus_unittests",
+  "display_name": "Views Mus Unittests",
+  "capabilities": {
+    "required": {
+      "mojo:desktop_wm": { "interfaces": [ "*" ] },
+      "mojo:mus": { "interfaces": [ "*" ] }
+    }
+  }
+}
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