Run dartfmt on all files under runtime.

runtime/observatory/tests/observatory_ui/mocks/objects/event.dart

Index: runtime/observatory/tests/observatory_ui/mocks/objects/event.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/objects/event.dart b/runtime/observatory/tests/observatory_ui/mocks/objects/event.dart
index 7e4aa17a0bf5577e35df21ae10b6d20ddc43a089..5e9e470f1526b556bd3f29c351d3f03cf3674978 100644
--- a/runtime/observatory/tests/observatory_ui/mocks/objects/event.dart
+++ b/runtime/observatory/tests/observatory_ui/mocks/objects/event.dart
@@ -9,54 +9,64 @@ class VMUpdateEventMock implements M.VMUpdateEvent {
   final DateTime timestamp;
   const VMUpdateEventMock({this.timestamp, this.vm});
 }
+
 class IsolateStartEventMock implements M.IsolateStartEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const IsolateStartEventMock({this.timestamp, this.isolate});
 }
+
 class IsolateRunnableEventMock implements M.IsolateRunnableEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const IsolateRunnableEventMock({this.timestamp, this.isolate});
 }
+
 class IsolateExitEventMock implements M.IsolateExitEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const IsolateExitEventMock({this.timestamp, this.isolate});
 }
+
 class IsolateUpdateEventMock implements M.IsolateUpdateEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const IsolateUpdateEventMock({this.timestamp, this.isolate});
 }
+
 class IsolateRealodEventMock implements M.IsolateReloadEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Error error;
   const IsolateRealodEventMock({this.timestamp, this.isolate, this.error});
 }
+
 class ServiceExtensionAddedEventMock implements M.ServiceExtensionAddedEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final String extensionRPC;
-  const ServiceExtensionAddedEventMock({this.extensionRPC, this.isolate,
-      this.timestamp});
+  const ServiceExtensionAddedEventMock(
+      {this.extensionRPC, this.isolate, this.timestamp});
 }
+
 class DebuggerSettingsUpdateEventMock implements M.PauseStartEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const DebuggerSettingsUpdateEventMock({this.isolate, this.timestamp});
 }
+
 class PauseStartEventMock implements M.PauseStartEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const PauseStartEventMock({this.isolate, this.timestamp});
 }
+
 class PauseExitEventMock implements M.PauseExitEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const PauseExitEventMock({this.isolate, this.timestamp});
 }
+
 class PauseBreakpointEventMock implements M.PauseBreakpointEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
@@ -64,83 +74,100 @@ class PauseBreakpointEventMock implements M.PauseBreakpointEvent {
   final List<M.Breakpoint> pauseBreakpoints;
   final M.Frame topFrame;
   final bool atAsyncSuspension;
-  const PauseBreakpointEventMock({this.timestamp, this.isolate, this.breakpoint,
-      this.pauseBreakpoints, this.topFrame, this.atAsyncSuspension});
+  const PauseBreakpointEventMock(
+      {this.timestamp,
+      this.isolate,
+      this.breakpoint,
+      this.pauseBreakpoints,
+      this.topFrame,
+      this.atAsyncSuspension});
 }
+
 class PauseInterruptedEventMock implements M.PauseInterruptedEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Frame topFrame;
   final bool atAsyncSuspension;
-  const PauseInterruptedEventMock({this.timestamp, this.isolate, this.topFrame,
-      this.atAsyncSuspension});
+  const PauseInterruptedEventMock(
+      {this.timestamp, this.isolate, this.topFrame, this.atAsyncSuspension});
 }
+
 class PauseExceptionEventMock implements M.PauseExceptionEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Frame topFrame;
   final M.InstanceRef exception;
-  const PauseExceptionEventMock({this.timestamp, this.isolate, this.topFrame,
-      this.exception});
+  const PauseExceptionEventMock(
+      {this.timestamp, this.isolate, this.topFrame, this.exception});
 }
+
 class ResumeEventMock implements M.ResumeEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Frame topFrame;
   const ResumeEventMock({this.timestamp, this.isolate, this.topFrame});
 }
+
 class BreakpointAddedEventMock implements M.BreakpointAddedEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Breakpoint breakpoint;
-  const BreakpointAddedEventMock({this.timestamp, this.isolate,
-      this.breakpoint});
+  const BreakpointAddedEventMock(
+      {this.timestamp, this.isolate, this.breakpoint});
 }
+
 class BreakpointResolvedEventMock implements M.BreakpointResolvedEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Breakpoint breakpoint;
-  const BreakpointResolvedEventMock({this.timestamp, this.isolate,
-      this.breakpoint});
+  const BreakpointResolvedEventMock(
+      {this.timestamp, this.isolate, this.breakpoint});
 }
+
 class BreakpointRemovedEventMock implements M.BreakpointRemovedEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.Breakpoint breakpoint;
-  const BreakpointRemovedEventMock({this.timestamp, this.isolate,
-      this.breakpoint});
+  const BreakpointRemovedEventMock(
+      {this.timestamp, this.isolate, this.breakpoint});
 }
+
 class InspectEventMock implements M.InspectEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final M.InstanceRef inspectee;
   const InspectEventMock({this.timestamp, this.isolate, this.inspectee});
 }
+
 class NoneEventMock implements M.NoneEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const NoneEventMock({this.timestamp, this.isolate});
 }
+
 class GCEventMock implements M.GCEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   const GCEventMock({this.timestamp, this.isolate});
 }
+
 class ExtensionEventMock implements M.ExtensionEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final String extensionKind;
   final M.ExtensionData extensionData;
-  const ExtensionEventMock({this.timestamp, this.isolate, this.extensionKind,
-      this.extensionData});
+  const ExtensionEventMock(
+      {this.timestamp, this.isolate, this.extensionKind, this.extensionData});
 }
+
 class TimelineEventsEventMock implements M.TimelineEventsEvent {
   final DateTime timestamp;
   final M.IsolateRef isolate;
   final List<M.TimelineEvent> timelineEvents;
-  const TimelineEventsEventMock({this.timestamp, this.isolate,
-      this.timelineEvents});
+  const TimelineEventsEventMock(
+      {this.timestamp, this.isolate, this.timelineEvents});
 }
+
 class ConnectionClockedEventMock implements M.ConnectionClosedEvent {
   final DateTime timestamp;
   final String reason;