Introduce listUIChanges API for developer UI

Filter out changes that are: logging only, older then enabled after P,
newer then enabled after Q.
Added missing @Test that broke builds.

Test: atest com.android.server.compat.PlatformCompatTest
Bug: 151299145
Change-Id: Ic4c12ceec3f4018a1f206b8498e8216466ecf960
Merged-In: Ic4c12ceec3f4018a1f206b8498e8216466ecf960

core/java/com/android/internal/compat/CompatibilityChangeInfo.java

@@ -93,6 +93,43 @@ public class CompatibilityChangeInfo implements Parcelable {
         dest.writeString(mDescription);
     }
 
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder("CompatibilityChangeInfo(")
+                .append(getId());
+        if (getName() != null) {
+            sb.append("; name=").append(getName());
+        }
+        if (getEnableAfterTargetSdk() != -1) {
+            sb.append("; enableAfterTargetSdk=").append(getEnableAfterTargetSdk());
+        }
+        if (getDisabled()) {
+            sb.append("; disabled");
+        }
+        if (getLoggingOnly()) {
+            sb.append("; loggingOnly");
+        }
+        return sb.append(")").toString();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || !(o instanceof CompatibilityChangeInfo)) {
+            return false;
+        }
+        CompatibilityChangeInfo that = (CompatibilityChangeInfo) o;
+        return this.mChangeId == that.mChangeId
+                && this.mName.equals(that.mName)
+                && this.mEnableAfterTargetSdk == that.mEnableAfterTargetSdk
+                && this.mDisabled == that.mDisabled
+                && this.mLoggingOnly == that.mLoggingOnly
+                && this.mDescription.equals(that.mDescription);
+
+    }
+
     public static final Parcelable.Creator<CompatibilityChangeInfo> CREATOR =
             new Parcelable.Creator<CompatibilityChangeInfo>() {
 

core/java/com/android/internal/compat/IPlatformCompat.aidl

@@ -221,6 +221,14 @@ interface IPlatformCompat
      */
     CompatibilityChangeInfo[] listAllChanges();
 
+    /**
+    * List the compatibility changes that should be present in the UI.
+    * Filters out certain changes like e.g. logging only.
+    *
+    * @return An array of {@link CompatChangeInfo}.
+    */
+    CompatibilityChangeInfo[] listUIChanges();
+
     /**
      * Get an instance that can determine whether a changeid can be overridden for a package name.
      */