Add logging for switch state

Bug: 17004602
Change-Id: I15c9feb7b28274183742936c20e34e7fb07e0b70
diff --git a/services/inputflinger/InputReader.h b/services/inputflinger/InputReader.h
index 9e36e35..c5896d4 100644
--- a/services/inputflinger/InputReader.h
+++ b/services/inputflinger/InputReader.h
@@ -999,9 +999,10 @@
     virtual void process(const RawEvent* rawEvent);
 
     virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode);
+    virtual void dump(String8& dump);
 
 private:
-    uint32_t mUpdatedSwitchValues;
+    uint32_t mSwitchValues;
     uint32_t mUpdatedSwitchMask;
 
     void processSwitch(int32_t switchCode, int32_t switchValue);