Fix typos.

packages/devtools_app/lib/src/debugger/file_search.dart

@@ -63,7 +63,7 @@ class FileSearchFieldState extends State<FileSearchField>
       searchFieldKey: fileSearchFieldKey,
       searchFieldEnabled: true,
       shouldRequestFocus: true,
-      keyEventsToPropogate: {LogicalKeyboardKey.escape},
+      keyEventsToPropagate: {LogicalKeyboardKey.escape},
       onSelection: _onSelection,
       onClose: _onClose,
       label: 'Open',

packages/devtools_app/lib/src/inspector/inspector_service.dart

@@ -995,7 +995,7 @@ abstract class ObjectGroupBase implements Disposable {
     }
   }
 
-  /// Evaluate an expression where `object` referrences the [inspectorRef] or
+  /// Evaluate an expression where `object` references the [inspectorRef] or
   /// [instanceRef] passed in.
   ///
   /// If both [inspectorRef] and [instanceRef] are passed in they are assumed to

packages/devtools_app/lib/src/screen.dart

@@ -67,7 +67,7 @@ abstract class Screen {
   /// Whether to show the console for this screen.
   bool showConsole(bool embed) => false;
 
-  /// Which keyboard shortcuts shoud be enabled for this screen.
+  /// Which keyboard shortcuts should be enabled for this screen.
   ShortcutsConfiguration buildKeyboardShortcuts(BuildContext context) =>
       ShortcutsConfiguration.empty();
 

packages/devtools_app/lib/src/ui/search.dart

@@ -614,7 +614,7 @@ mixin SearchFieldMixin<T extends StatefulWidget> on State<T> {
   /// autocomplete overlay should be positioned relative to the input text.
   /// [supportClearField] if true clear TextField content if pop-up not visible. If
   /// pop-up is visible close the pop-up on first ESCAPE.
-  /// [keyEventsToPropogate] a set of key events that should be propogated to
+  /// [keyEventsToPropagate] a set of key events that should be propagated to
   /// other handlers
   Widget buildAutoCompleteSearchField({
     @required AutoCompleteSearchControllerMixin controller,
@@ -627,7 +627,7 @@ mixin SearchFieldMixin<T extends StatefulWidget> on State<T> {
     String label,
     OverlayXPositionBuilder overlayXPositionBuilder,
     bool supportClearField = false,
-    Set<LogicalKeyboardKey> keyEventsToPropogate = const {},
+    Set<LogicalKeyboardKey> keyEventsToPropagate = const {},
     VoidCallback onClose,
   }) {
     _onSelection = onSelection;
@@ -653,7 +653,7 @@ mixin SearchFieldMixin<T extends StatefulWidget> on State<T> {
       onSelection: onSelection,
       onHighlightDropdown: onHighlightDropdown,
       clearSearchField: clearSearchField,
-      keyEventsToPropogate: keyEventsToPropogate,
+      keyEventsToPropagate: keyEventsToPropagate,
       supportClearField: supportClearField,
       closeHandler: _closeHandler,
     );
@@ -805,7 +805,7 @@ class _AutoCompleteSearchField extends StatelessWidget {
     @required this.onSelection,
     @required this.onHighlightDropdown,
     @required this.clearSearchField,
-    this.keyEventsToPropogate = const {},
+    this.keyEventsToPropagate = const {},
     this.supportClearField = false,
     this.closeHandler,
   });
@@ -817,7 +817,7 @@ class _AutoCompleteSearchField extends StatelessWidget {
   final SelectAutoComplete onSelection;
   final HighlightAutoComplete onHighlightDropdown;
   final ClearSearchField clearSearchField;
-  final Set<LogicalKeyboardKey> keyEventsToPropogate;
+  final Set<LogicalKeyboardKey> keyEventsToPropagate;
   final bool supportClearField;
   final VoidCallback closeHandler;
 
@@ -860,7 +860,7 @@ class _AutoCompleteSearchField extends StatelessWidget {
           }
           return _determineKeyEventResult(
             key,
-            keyEventsToPropogate,
+            keyEventsToPropagate,
           );
         } else if (controller.autoCompleteOverlay != null) {
           if (key == enter || key == enterMac || key == tab || key == tabMac) {
@@ -891,18 +891,18 @@ class _AutoCompleteSearchField extends StatelessWidget {
               controller.selectTheSearch = true;
               controller.search = foundExact;
               onSelection(foundExact);
-              return _determineKeyEventResult(key, keyEventsToPropogate);
+              return _determineKeyEventResult(key, keyEventsToPropagate);
             }
           } else if (key == arrowDown || key == arrowUp) {
             highlightDropdown(controller, key == arrowDown);
-            return _determineKeyEventResult(key, keyEventsToPropogate);
+            return _determineKeyEventResult(key, keyEventsToPropagate);
           }
         }
 
         // We don't support tabs in the search input. Swallow to prevent a
         // change of focus.
         if (key == tab || key == tabMac) {
-          _determineKeyEventResult(key, keyEventsToPropogate);
+          _determineKeyEventResult(key, keyEventsToPropagate);
         }
       }
 
@@ -930,11 +930,11 @@ class _AutoCompleteSearchField extends StatelessWidget {
 
   KeyEventResult _determineKeyEventResult(
     int keyEventId,
-    Set<LogicalKeyboardKey> keyEventsToPropogate,
+    Set<LogicalKeyboardKey> keyEventsToPropagate,
   ) {
-    final shouldPropogateKeyEvent = keyEventsToPropogate
+    final shouldPropagateKeyEvent = keyEventsToPropagate
         .any((key) => key.keyId & LogicalKeyboardKey.valueMask == keyEventId);
-    return shouldPropogateKeyEvent
+    return shouldPropagateKeyEvent
         ? KeyEventResult.ignored
         : KeyEventResult.handled;
   }