Lockscreen: See through (1/2)

Add the ability to see through lockscreen.
Adapted to kitkat from jellybean by @BigBrother1984

Signed-off-by: D4rKn3sSyS <jesdga95@gmail.com>
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS2:

* Adding missing sem-colon.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Change-Id: I9057a6e302a5a824799844f27e8f64ff677a520a

PS3:

* Replace and remove undefined mContext.
* Define the boolean enableScreenRotation inside new method.
* Whitespaces clean up.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS4:

* Restore mContext in setKeyguardParams().

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS5:

* Fixes for setKeyguardParams() and maybeCreateKeyguardLocked() methods, kitkat changed some things.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS6:

* Missing sem-colon.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS7: Fix all the things.

* Effects doesn't vanish after first unlock.
* Created condition in updateShowWallpaper() method that just return if see through is activated, he was restoring the wallpaper at second lock.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS8: Cosmetic changes.

* Correct java style name to seeThrough() and place it above updateShowWallpaper().

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS9: Other cosmetic changes.

* Better name to the see through boolean.
* Removed a space nitpick.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS10:

* We had two booleans for the same thing, ditch the one defined in one class only and take the global.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Change-Id: I06d952f85baf284961a24c8c9f90b29f4aef719a

Conflicts:
	core/java/android/provider/Settings.java
	services/java/com/android/server/wm/WindowAnimator.java
Frameworks: Lockscreen Blur

Also squashed commit:
Fix: Lockscreen Blur Rotation
Author: Anu6is

  If user selects "See through" under screen security,
  the locksceen background will now appear transparent
  with the content behind it blurred.

Modificaitons made to the orginal commit to support Hammerhead and Flo.
It seems full HD images causes rendering artifacts. To prevent this,
we scale the image size to something more manageable.

PS2: Reduce calls to System.Settngs
     Move bitmap scaling to DisplayPowerController
PS3: Fix styling
PS4: Fixes: 1. Black wallpaper after turning off see through
            2. Wallpaper flicker on unlock when blur is enabled
PS5: Ignore status bar and nav bar when capturing screenshots
PS6: 1. Remove content observer and unnecessary calls from viewManager
     2. Restructure the flow of setting the custom image
         * now closely follows setting album art as lockscreen image

Change-Id: Ie72bab697726af5e145bd0192980885ea7222ecd

Conflicts:
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardServiceWrapper.java
	services/java/com/android/server/power/DisplayPowerController.java
fb: finally fix carrier lable shows on first boot sometimes

Issue:
- boot up
- directly open via fast QS pulldown QS
- sometimes carrier label is shown

Expected behaviour: should not show

Fix: Visibility is directly set when the settings observer is registered first time.
If no update was done on the carrier label before the user pulled QS down the first time
it showed up. Vary rare case that this can happen
but should be handled. To fix it do not set the visibility directly and call the
updateCarrierAndWifiLabelVisibility(boolean) method to handle the correct visibility.

As well last cleanup on notification shorcuts...move the check if it is
active or not to the visbility method itself. Way cleaner

And remove the previous attempt to fix the above described issue due
it did not fix it at all

Change-Id: I901beb987c21fe0cdb7a5d9f16f850f4297c15f4