Recreate setCloudProvider() funtion inorder to pass permission checks

before updating cloud Provider

Recreate setCloudProvider() function in PhotoPickerBaseTest class inorder to pass permission checks, added in MediaProvider class while updating the cloud provider. Gave necessary shell permissions to
update cloudProvider through shell. Also modified previously present
setCloudProvider() function call in all the CTS tests.

Bug: b/267327327
Test: -
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:9140fd9224210562f009e533b78c9580a35b82d3)
Merged-In: I53ee95cc5bea437a607aac5f63c0848e7a22ac12
Change-Id: I53ee95cc5bea437a607aac5f63c0848e7a22ac12

Author: Shivam Garg

tests/PhotoPicker/src/android/photopicker/cts/ActionUserSelectImagesForAppTest.java

@@ -26,7 +26,6 @@
 import static android.photopicker.cts.PhotoPickerCloudUtils.isCloudMediaEnabled;
 import static android.photopicker.cts.PhotoPickerCloudUtils.selectAndAddPickerMedia;
 import static android.photopicker.cts.PickerProviderMediaGenerator.getMediaGenerator;
-import static android.photopicker.cts.PickerProviderMediaGenerator.setCloudProvider;
 import static android.photopicker.cts.util.PhotoPickerFilesUtils.createImagesAndGetUris;
 
 import static com.android.compatibility.common.util.SystemUtil.runWithShellPermissionIdentity;
@@ -61,6 +60,7 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -72,30 +72,35 @@ public class ActionUserSelectImagesForAppTest extends PhotoPickerBaseTest {
     private static boolean sCloudMediaPreviouslyEnabled;
     @Nullable
     private static String sPreviouslyAllowedCloudProviders;
+    @Nullable
+    private static String sPreviouslySetCloudProvider;
 
     @BeforeClass
-    public static void setUpClass() {
+    public static void setUpClass() throws IOException {
         // Store the current Cloud-Media feature configs which we will override during the test,
         // and will need to restore after the test finished.
         sCloudMediaPreviouslyEnabled = isCloudMediaEnabled();
         if (sCloudMediaPreviouslyEnabled) {
             sPreviouslyAllowedCloudProviders = getAllowedProvidersDeviceConfig();
         }
+        sPreviouslySetCloudProvider = getCurrentCloudProvider();
 
         // Override the allowed cloud providers config to enable the banners
         // (this is a self-instrumenting test, so "target" package name and "own" package name are
         // same: android.photopicker.cts).
         enableCloudMediaAndSetAllowedCloudProviders(sTargetPackageName);
+
     }
 
     @AfterClass
-    public static void tearDownClass() {
+    public static void tearDownClass() throws Exception {
         // Restore Cloud-Media feature configs.
         if (sCloudMediaPreviouslyEnabled) {
             enableCloudMediaAndSetAllowedCloudProviders(sPreviouslyAllowedCloudProviders);
         } else {
             disableCloudMediaAndClearAllowedCloudProviders();
         }
+        setCloudProvider(sPreviouslySetCloudProvider);
     }
 
     @After
@@ -212,7 +217,7 @@ public void testNoCloudContent() throws Exception {
                 PhotoPickerFilesUtils.deleteMedia(uri, mContext);
             }
             uriList.clear();
-            setCloudProvider(mContext, null);
+            setCloudProvider(null);
         }
     }