Rename sequenceNum to ID.

This is for consistency with ID in other places. Change it to signed
type to match Java int type.

Bug: 144889238
Test: atest inputflinger_tests
Change-Id: I8b6782a67f28aa13f7feaed2c97b8e87105019db
Merged-In: I8b6782a67f28aa13f7feaed2c97b8e87105019db
(cherry picked from commit 6a5a14e75b1a0fb377c670cb9a1e9ace60c5da74)
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index ab354a2..7be4a58 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -348,9 +348,8 @@
         policyFlags |= POLICY_FLAG_DISABLE_KEY_REPEAT;
     }
 
-    NotifyKeyArgs args(getContext()->getNextSequenceNum(), when, getDeviceId(), mSource,
-                       getDisplayId(), policyFlags,
-                       down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
+    NotifyKeyArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, getDisplayId(),
+                       policyFlags, down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
                        AKEY_EVENT_FLAG_FROM_SYSTEM, keyCode, scanCode, keyMetaState, downTime);
     getListener()->notifyKey(&args);
 }