Improve polish for the MediaProjectionPermissionActivity.

- Change title styling / padding per UX spec.
- Also, fully support dark theme..

Test: visual, both in dark and light themes.
Bug: 131210470
Bug: 129787693
Change-Id: I150533c063feaa1be2879f34b5b6ac604f265e23
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 02d826f..4b4912c 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -444,7 +444,7 @@
         <activity
             android:name=".media.MediaProjectionPermissionActivity"
             android:exported="true"
-            android:theme="@style/Theme.MediaProjectionAlertDialog"
+            android:theme="@style/Theme.SystemUI.MediaProjectionAlertDialog"
             android:finishOnCloseSystemDialogs="true"
             android:launchMode="singleTop"
             android:excludeFromRecents="true"
diff --git a/packages/SystemUI/res/drawable-night/ic_media_projection_permission.xml b/packages/SystemUI/res/drawable-night/ic_media_projection_permission.xml
new file mode 100644
index 0000000..f20babf
--- /dev/null
+++ b/packages/SystemUI/res/drawable-night/ic_media_projection_permission.xml
@@ -0,0 +1,26 @@
+<!--
+Copyright (C) 2019 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<inset xmlns:android="http://schemas.android.com/apk/res/android"
+    android:insetLeft="2.5dp"
+    android:insetRight="2.5dp">
+    <vector android:width="24dp"
+            android:height="24dp"
+            android:viewportWidth="24.0"
+            android:viewportHeight="24.0">
+        <path android:fillColor="#FFFFFFFF" android:pathData="M1,18v3h3C4,19.34 2.66,18 1,18zM1,14v2c2.76,0 5,2.24 5,5h2C8,17.13 4.87,14 1,14zM1,10v2c4.97,0 9,4.03 9,9h2C12,14.92 7.07,10 1,10zM21,3H3C1.9,3 1,3.9 1,5v3h2V5h18v14h-7v2h7c1.1,0 2,-0.9 2,-2V5C23,3.9 22.1,3 21,3z"/>
+        <path android:fillColor="#FF0000" android:pathData="M19,7H5v1.63c3.96,1.28 7.09,4.41 8.37,8.37H19V7z"/>
+    </vector>
+</inset>
diff --git a/packages/SystemUI/res/layout/media_projection_dialog_title.xml b/packages/SystemUI/res/layout/media_projection_dialog_title.xml
index c4d784b..b9e39da 100644
--- a/packages/SystemUI/res/layout/media_projection_dialog_title.xml
+++ b/packages/SystemUI/res/layout/media_projection_dialog_title.xml
@@ -15,25 +15,26 @@
     limitations under the License.
 -->
 
-<RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"
+<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"
         xmlns:android="http://schemas.android.com/apk/res/android"
-        android:theme="@style/Theme.MediaProjectionAlertDialog"
+        android:theme="@style/Theme.SystemUI.MediaProjectionAlertDialog"
         android:paddingStart="?android:attr/dialogPreferredPadding"
         android:paddingEnd="?android:attr/dialogPreferredPadding"
-        android:paddingTop="?android:attr/dialogPreferredPadding">
+        android:orientation="vertical">
     <ImageView
         android:id="@+id/dialog_icon"
         android:src="@drawable/ic_media_projection_permission"
-        android:layout_height="wrap_content"
-        android:layout_width="match_parent"
-        android:layout_marginBottom="20dp"
-        android:layout_centerInParent="true"/>
+        android:layout_height="24dp"
+        android:layout_width="24dp"
+        android:layout_marginTop="18dp"
+        android:layout_marginBottom="12dp"
+        android:layout_gravity="center_horizontal" />
     <TextView
         android:id="@+id/dialog_title"
         android:gravity="center"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@id/dialog_icon"
-        android:textColor="?android:attr/colorPrimary"
+        android:textSize="20sp"
+        android:textColor="?android:attr/textColorPrimary"
         android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Title" />
-</RelativeLayout>
+</LinearLayout>
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index 083418e..4dcc108d 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -349,7 +349,7 @@
     <style name="AutoSizingList">
         <item name="enableAutoSizing">true</item>
     </style>
-    <style name="Theme.MediaProjectionAlertDialog" parent="android:Theme.DeviceDefault">
+    <style name="Theme.SystemUI.MediaProjectionAlertDialog">
         <item name="android:windowIsTranslucent">true</item>
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:windowContentOverlay">@null</item>