Handle config changes in Launcher

- This is practically a revert to http://ag/c/13687966/5 and refactored to use DisplayController.DisplayInfoChangeListener
- Make Launcher handle size and density change so transition is less janky when screen size changes
- Added fix in RecentsView to update state and TaskView when display profile changes
- Removed 720dp specific resoureces
- Removed unused widget_section_indent
- Removed unnecessary all_apps_background_canvas 600dp override that is not needed in AllApps+
- Moved remaining dp specific into DeviceProfile
- Simplified allowRotation logic to use single variable in DeviceProfile to determine if allow rotation is enabled by default

Fixes: 180803696
Test: manual
Change-Id: Iea0a7d1a0e14dc3613152dd3b3887450a2e1fc2f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1fad72d..8066816 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -49,7 +49,7 @@
             android:stateNotNeeded="true"
             android:windowSoftInputMode="adjustPan"
             android:screenOrientation="unspecified"
-            android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout"
+            android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout|smallestScreenSize|density"
             android:resizeableActivity="true"
             android:resumeWhilePausing="true"
             android:taskAffinity=""