Diagnostics: Add missing type annotations

Bug: 1125150
Test: browser_tests --gtest_Filter=DiagnosticsApp*
Change-Id: Ia61f672578543693b0107f65a91d1be033e2d081
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2544752Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Commit-Queue: Michael Checo <michaelcheco@google.com>
Cr-Commit-Position: refs/heads/master@{#828751}

chromeos/components/diagnostics_ui/resources/cpu_card.js

@@ -38,6 +38,7 @@ Polymer({
   cpuUsageObserverReceiver_: null,
 
   properties: {
+    /** @private {!Array<!RoutineName>} */
     routines_: {
       type: Array,
       value: () => {

chromeos/components/diagnostics_ui/resources/data_point.js

@@ -18,10 +18,12 @@ Polymer({
   _template: html`{__html_template__}`,
 
   properties: {
+    /** @type {string} */
     header: {
       type: String,
     },
 
+    /** @type {string} */
     value: {
       type: String,
       value: '',

chromeos/components/diagnostics_ui/resources/diagnostics_app.js

@@ -35,7 +35,7 @@ Polymer({
   systemDataProvider_: null,
 
   properties: {
-    /** @private */
+    /** @private {boolean} */
     showBatteryStatusCard_: {
       type: Boolean,
       value: false,

chromeos/components/diagnostics_ui/resources/percent_bar_chart.js

@@ -23,20 +23,24 @@ Polymer({
   _template: html`{__html_template__}`,
 
   properties: {
+    /** @type {string} */
     header: {
       type: String,
     },
 
+    /** @type {string} */
     headerIcon: {
       type: String,
       value: '',
     },
 
+    /** @type {number} */
     value: {
       type: Number,
       value: 0,
     },
 
+    /** @type {number} */
     max: {
       type: Number,
       value: 100,

chromeos/components/diagnostics_ui/resources/realtime_cpu_chart.js

@@ -36,7 +36,7 @@ Polymer({
    */
   yAxisScaleFn_: null,
 
-  /** @private {!Array<Object>} */
+  /** @private {!Array<!Object>} */
   data_: [],
 
   /**
@@ -46,54 +46,56 @@ Polymer({
   dataLastUpdated_: 0,
 
   properties: {
+    /** @type {number} */
     user: {
       type: Number,
       value: 0,
     },
 
+    /** @type {number} */
     system: {
       type: Number,
       value: 0,
     },
 
-    /** @private */
+    /** @private {number} */
     numDataPoints_: {
       type: Number,
       value: 50,
     },
 
-    /** @private */
+    /** @private {number} */
     refreshInterval_: {
       type: Number,
       value: 200,  // in milliseconds.
     },
 
-    /** @private */
+    /** @private {number} */
     width_: {
       type: Number,
       value: 350,
     },
 
-    /** @private */
+    /** @private {number} */
     height_: {
       type: Number,
       value: 100,
     },
 
-    /** @private */
+    /** @private {!Object} */
     margin_: {
       type: Object,
       value: {top: 10, right: 20, bottom: 10, left: 30},
     },
 
-    /** @private */
+    /** @private {number} */
     graphWidth_: {
       readOnly: true,
       type: Number,
       computed: 'getGraphDimension_(width_, margin_.left, margin_.right)'
     },
 
-    /** @private */
+    /** @private {number} */
     graphHeight_: {
       readOnly: true,
       type: Number,

chromeos/components/diagnostics_ui/resources/routine_section.js

@@ -64,20 +64,20 @@ Polymer({
 
     /**
      * Name of currently running test
-     * @private
+     * @private {string}
      */
     currentTestName_: {
       type: String,
       value: '',
     },
 
-    /** @private */
+    /** @private {boolean} */
     isRunTestsDisabled_: {
       type: Boolean,
       value: false,
     },
 
-    /** @private */
+    /** @private {boolean} */
     isReportListHidden_: {
       type: Boolean,
       value: true,