[presubmit] Enabling readability/inheritance linter checking.

src/libplatform/default-platform.h

Index: src/libplatform/default-platform.h
diff --git a/src/libplatform/default-platform.h b/src/libplatform/default-platform.h
index 0dbedb6fc069dcd96dd78ca9c1231c7bf29ed5bc..b452fdd34560c75f91e7a16fbe9c1c5278eb39a9 100644
--- a/src/libplatform/default-platform.h
+++ b/src/libplatform/default-platform.h
@@ -34,15 +34,13 @@ class DefaultPlatform : public Platform {
   bool PumpMessageLoop(v8::Isolate* isolate);
 
   // v8::Platform implementation.
-  virtual void CallOnBackgroundThread(
-      Task* task, ExpectedRuntime expected_runtime) override;
-  virtual void CallOnForegroundThread(v8::Isolate* isolate,
-                                      Task* task) override;
-  virtual void CallDelayedOnForegroundThread(Isolate* isolate, Task* task,
-                                             double delay_in_seconds) override;
-  virtual void CallIdleOnForegroundThread(Isolate* isolate,
-                                          IdleTask* task) override;
-  virtual bool IdleTasksEnabled(Isolate* isolate) override;
+  void CallOnBackgroundThread(Task* task,
+                              ExpectedRuntime expected_runtime) override;
+  void CallOnForegroundThread(v8::Isolate* isolate, Task* task) override;
+  void CallDelayedOnForegroundThread(Isolate* isolate, Task* task,
+                                     double delay_in_seconds) override;
+  void CallIdleOnForegroundThread(Isolate* isolate, IdleTask* task) override;
+  bool IdleTasksEnabled(Isolate* isolate) override;
   double MonotonicallyIncreasingTime() override;
 
  private: