Diagnostics: Add routine controller to mojo provider

Bug: 1125150
Test: browser_tests --gtest_filter=DiagnosticsApp*
Change-Id: I274a1e66cc2959f5e3655d7e0655293a1a4f6eda
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2462349Reviewed-by: Bailey Berro <baileyberro@chromium.org>
Commit-Queue: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815428}

chrome/test/data/webui/chromeos/diagnostics/mojo_interface_provider_test.js

@@ -5,7 +5,8 @@
 // TODO(jimmyxgong): Use es6 module for mojo binding (crbug/1004256).
 import 'chrome://resources/mojo/mojo/public/js/mojo_bindings_lite.js';
 
-import {getSystemDataProvider, setSystemDataProviderForTesting} from 'chrome://diagnostics/mojo_interface_provider.js';
+import {FakeSystemRoutineController} from 'chrome://diagnostics/fake_system_routine_controller.js';
+import {getSystemDataProvider, getSystemRoutineController, setSystemDataProviderForTesting, setSystemRoutineControllerForTesting} from 'chrome://diagnostics/mojo_interface_provider.js';
 
 suite('FakeMojoProviderTest', () => {
   test('SettingGettingTestProvider', () => {
@@ -15,4 +16,10 @@ suite('FakeMojoProviderTest', () => {
     setSystemDataProviderForTesting(fake_provider);
     assertEquals(fake_provider, getSystemDataProvider());
   });
+
+  test('SettingGettingTestController', () => {
+    let fake_controller = new FakeSystemRoutineController();
+    setSystemRoutineControllerForTesting(fake_controller);
+    assertEquals(fake_controller, getSystemRoutineController());
+  });
 });
\ No newline at end of file

chromeos/components/diagnostics_ui/resources/BUILD.gn

@@ -107,6 +107,8 @@ js_library("mojo_interface_provider") {
   deps = [
     ":diagnostics_types",
     ":fake_data",
+    ":fake_system_data_provider",
+    ":fake_system_routine_controller",
     "//ui/webui/resources/js:cr.m",
   ]
 }

chromeos/components/diagnostics_ui/resources/mojo_interface_provider.js

@@ -3,9 +3,10 @@
 // found in the LICENSE file.
 
 import {assert} from 'chrome://resources/js/assert.m.js';
-import {SystemDataProviderInterface, SystemInfo} from './diagnostics_types.js'
-import {fakeBatteryChargeStatus, fakeBatteryHealth, fakeBatteryInfo, fakeCpuUsage, fakeMemoryUsage, fakeSystemInfo} from './fake_data.js'
-import {FakeSystemDataProvider} from './fake_system_data_provider.js'
+import {SystemDataProviderInterface, SystemInfo, SystemRoutineControllerInterface} from './diagnostics_types.js';
+import {fakeBatteryChargeStatus, fakeBatteryHealth, fakeBatteryInfo, fakeCpuUsage, fakeMemoryUsage, fakeSystemInfo} from './fake_data.js';
+import {FakeSystemDataProvider} from './fake_system_data_provider.js';
+import {FakeSystemRoutineController} from './fake_system_routine_controller.js';
 
 /**
  * @fileoverview
@@ -36,11 +37,28 @@ function setupFakeSystemDataProvider_() {
   setSystemDataProviderForTesting(provider);
 }
 
+/**
+ * Sets up a FakeSystemRoutineController to be used at runtime.
+ * TODO(zentaro): Remove once mojo bindings are implemented.
+ */
+function setupFakeSystemRoutineController_() {
+  // Create controller.
+  let controller = new FakeSystemRoutineController();
+
+  // Set the fake controller.
+  setSystemRoutineControllerForTesting(controller);
+}
+
 /**
  * @type {?SystemDataProviderInterface}
  */
 let systemDataProvider = null;
 
+/**
+ * @type {?SystemRoutineControllerInterface}
+ */
+let systemRoutineController = null;
+
 /**
  * @param {!SystemDataProviderInterface} testProvider
  */
@@ -60,3 +78,23 @@ export function getSystemDataProvider() {
   assert(!!systemDataProvider);
   return systemDataProvider;
 }
+
+/**
+ * @param {!SystemRoutineControllerInterface} testController
+ */
+export function setSystemRoutineControllerForTesting(testController) {
+  systemRoutineController = testController;
+}
+
+/**
+ * @return {!SystemRoutineControllerInterface}
+ */
+export function getSystemRoutineController() {
+  if (!systemRoutineController) {
+    // TODO(zentaro): Instantiate a real mojo interface here.
+    setupFakeSystemRoutineController_();
+  }
+
+  assert(!!systemRoutineController);
+  return systemRoutineController;
+}