Add override keyword to in inherited classes

We add the override keyword to methods of a subclass that are meant to
override those in the base class to make sure the method signatures
match at compile time.

Bug: 130819454
Test: m -j
Change-Id: Ib325da3f9a60bfb77838fd37e44daf8f7c98e7ab
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.h b/services/inputflinger/reader/mapper/JoystickInputMapper.h
index 1b071d0..b46d27d 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.h
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.h
@@ -26,12 +26,13 @@
     explicit JoystickInputMapper(InputDevice* device);
     virtual ~JoystickInputMapper();
 
-    virtual uint32_t getSources();
-    virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo);
-    virtual void dump(std::string& dump);
-    virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes);
-    virtual void reset(nsecs_t when);
-    virtual void process(const RawEvent* rawEvent);
+    virtual uint32_t getSources() override;
+    virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
+    virtual void dump(std::string& dump) override;
+    virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
+                           uint32_t changes) override;
+    virtual void reset(nsecs_t when) override;
+    virtual void process(const RawEvent* rawEvent) override;
 
 private:
     struct Axis {