Remove the fixed-length buffer in DdmHandleNativeHeap.getLeakInfo.

It was possible to overrun this buffer, and even if you did fill
the buffer in a single read and exit the loop, the "string" still
wouldn't be terminated.

Bug: 8468088
Change-Id: Ia19f4d26dfd79e7b63807a7ec9540b932163d246
Force clear cache on 'clear all'

Add long click to 'clear all' button in recents panel to force
clear caches, dentries and inodes

Change-Id: Iaa0ff526707be5b21bf746767f6241f4f0b6c39e
Koush broke my cache!!!

Change-Id: Ia5796146de1b876772ea1ca487f43d3e933862da