LagFix: Don't set any transparency if it's set to default value

Change-Id: Idf55f8bfec29c73108f0b5622a1d9266f85369a3

* temasek sources doesn't include the following transparancies per conflict files

Conflicts:
	packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
	services/core/java/com/android/server/policy/GlobalActions.java
	services/core/java/com/android/server/power/ShutdownThread.java

Author: LorDClockaN

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

@@ -2718,11 +2718,14 @@ public void update() {
     }
 
     private void setQSBackgroundAlpha() {
-        if (mQsContainer != null) {
-            mQsContainer.getBackground().setAlpha(mQSShadeAlpha);
-        }
-        if (mQsPanel != null) {
-            mQsPanel.setQSShadeAlphaValue(mQSShadeAlpha);
+        if (Settings.System.getInt(mContext.getContentResolver(),
+                    Settings.System.QS_TRANSPARENT_SHADE, 255) != 255) {
+            if (mQsContainer != null) {
+                mQsContainer.getBackground().setAlpha(mQSShadeAlpha);
+            }
+            if (mQsPanel != null) {
+                mQsPanel.setQSShadeAlphaValue(mQSShadeAlpha);
+            }
         }
     }
 

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarHeaderView.java

@@ -1352,11 +1352,14 @@ private void disableTextShadow() {
     }
 
     private void setQSHeaderAlpha() {
-        if (mHeaderView != null) {
-            mHeaderView.getBackground().setAlpha(mQSHeaderAlpha);
-        }
-        if (mBackgroundImage != null) {
-            mBackgroundImage.setAlpha(mQSHeaderAlpha);
+        if (Settings.System.getInt(mContext.getContentResolver(),
+                    Settings.System.QS_TRANSPARENT_HEADER, 255) != 255) {
+            if (mHeaderView != null) {
+                 mHeaderView.getBackground().setAlpha(mQSHeaderAlpha);
+            }
+            if (mBackgroundImage != null) {
+                mBackgroundImage.setAlpha(mQSHeaderAlpha);
+            }
         }
     }