Apply ResultCallback to DevelopmentTiles

In CL[1], the startImeTrace and stopImeTrace apply
the ResultCallback mechanism. Change corresponding
API usages in DevelopmentTiles.

We are also working on getting rid of direct dependecy
on IInputMethodManager from Settings.(see b/175742251)

[1]: I3eafbc28ed3acf3ba859885bf201cb06b3149b94

Bug: 163453493
Test: make RunSettingsRoboTests ROBOTEST_FILTER="WinscopeTraceTest"
Test: 1) Enable the Winscope Trace tile
      2) Do some actions like open keyboard
      3) Disable the Winscope Trace tile
      4) Grad a bugreport and verify trace on go/Winscope
Change-Id: I6733e8b500f5e02d4e14cde4ab7a46f4f716f5d0