Change TetheringManager#RequestDispatcher as static

If the system GC does not recycle the RequestDispatcher
objects in time, they will hold more contexts, which may
lead to OutOfMemoryError.

So change TetheringManager#RequestDispatcher as static.

Bug:369730368

Change-Id: Ia67d8547bd2d239b5f939bd870761f2946afd43b
Signed-off-by: dingfeisong <dingfeisong@xiaomi.corp-partner.google.com>
1 file changed