Hard coded sampler2D force (MISSING_EGL_EXTERNAL_IMAGE)

Change-Id: If0a74fc0c14dc53c0b0b535568307638228f7842
hwui: Allow to blacklist android applications

Add support for a local config folder with blacklisted process names
/data/local/hwui.deny/<package name>

Only enabled with "hwui.use.blacklist=true"

This system can be used easily from adb shell, without reboot
or with a setting app, like the one i use, HwaSettings

Change-Id: I436b5dd7d6bf9fd36be7e86fc9d2a174a66701ff

Conflicts:

	core/java/android/app/ActivityThread.java

Conflicts:

	core/java/android/app/ActivityThread.java
MISSING_EGL_EXTERNAL_IMAGE on hwui

Change-Id: Ibf2f7dd12b77009b183f6e8cdd0c3f09153af646

Conflicts:

	libs/hwui/ProgramCache.cpp
More dirty hardcoded MISSING_EGL_EXTERNAL_IMAGE

Change-Id: I09580d7a57c64083498ef4950bc6fab426fad224