Camera: Annotate the Key constructors with nullability.

Test: Builds
Bug: 126699273
Change-Id: Ifd14a79ff6ffbb19ef1a45ac0da45efa2be748b1

api/current.txt

@@ -16738,7 +16738,7 @@ package android.hardware.camera2 {
   }
 
   public static final class CameraCharacteristics.Key<T> {
-    ctor public CameraCharacteristics.Key(String, Class<T>);
+    ctor public CameraCharacteristics.Key(@NonNull String, @NonNull Class<T>);
     method @NonNull public String getName();
   }
 
@@ -17111,7 +17111,7 @@ package android.hardware.camera2 {
   }
 
   public static final class CaptureRequest.Key<T> {
-    ctor public CaptureRequest.Key(String, Class<T>);
+    ctor public CaptureRequest.Key(@NonNull String, @NonNull Class<T>);
     method @NonNull public String getName();
   }
 
@@ -17206,7 +17206,7 @@ package android.hardware.camera2 {
   }
 
   public static final class CaptureResult.Key<T> {
-    ctor public CaptureResult.Key(String, Class<T>);
+    ctor public CaptureResult.Key(@NonNull String, @NonNull Class<T>);
     method @NonNull public String getName();
   }
 

core/java/android/hardware/camera2/CameraCharacteristics.java

@@ -97,7 +97,7 @@ public final class CameraCharacteristics extends CameraMetadata<CameraCharacteri
          * they may be useful for testing purposes and for defining custom camera
          * characteristics.</p>
          */
-        public Key(String name, Class<T> type) {
+        public Key(@NonNull String name, @NonNull Class<T> type) {
             mKey = new CameraMetadataNative.Key<T>(name,  type);
         }
 

core/java/android/hardware/camera2/CaptureRequest.java

@@ -120,7 +120,7 @@ public final class CaptureRequest extends CameraMetadata<CaptureRequest.Key<?>>
          * {@link CaptureRequest}, and not need to construct their own Key objects. However, they
          * may be useful for testing purposes and for defining custom capture request fields.</p>
          */
-        public Key(String name, Class<T> type) {
+        public Key(@NonNull String name, @NonNull Class<T> type) {
             mKey = new CameraMetadataNative.Key<T>(name, type);
         }
 

core/java/android/hardware/camera2/CaptureResult.java

@@ -100,7 +100,7 @@ public class CaptureResult extends CameraMetadata<CaptureResult.Key<?>> {
          * {@link CaptureResult}, and not need to construct their own Key objects. However, they may
          * be useful for testing purposes and for defining custom capture result fields.</p>
          */
-        public Key(String name, Class<T> type) {
+        public Key(@NonNull String name, @NonNull Class<T> type) {
             mKey = new CameraMetadataNative.Key<T>(name, type);
         }