Halo fix for hdpi/mdpi

We need to merge these ASAP!

https://github.com/ParanoidAndroid/android_frameworks_base/commit/a4c65e878fbc3c37d6b18c1a9e07308de04c8311

https://github.com/ParanoidAndroid/android_frameworks_base/commit/4a8c02330602a56d58f790165af0379ad2b1cbd9

https://github.com/ParanoidAndroid/android_frameworks_base/commit/c3c4706f290fc96ac817337612a4f5605be55371
HALO bugfixes

1. some icons were overblown
2. tasking meant having your thumb on the speechbubbles

Change-Id: I04637a5ae96c3d9fa30188a320e13989c48f7f0c
Halo: Fix icon position in tablet status bar
FLAG_ACTIVITY_NEW_TASK re-added to floating windows

ActivityStack modified to not cancel results if window is floating and "new".

Change-Id: I45f3dcc816092daa4192be91828592a0b2b2ac59
PrivacyGuard: New icons close to AOSP style
HALO Size (1/2)

Change-Id: I2780dfee66b0b80b57c62b83c40609104fe3c279
FW: Set size for custom bg as well. (HALO)
Halo: Avoid showing Halo))) icons in status bar while added to Halo (Credits @Anu6is)
Some changes