Add FilesPayload for NDK reports

Author: mrwillis21

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/internal/model/CrashlyticsReport.java

@@ -84,9 +84,8 @@ public static Builder builder() {
   @NonNull
   public abstract Session getSession();
 
-  // TODO: Add back once NDK data is ready to be serialized
-  // @Nullable
-  // public abstract byte[] getNdkPayload();
+  @Nullable
+  public abstract FilesPayload getNdkPayload();
 
   @NonNull
   protected abstract Builder toBuilder();
@@ -123,6 +122,58 @@ public CrashlyticsReport withUserId(@NonNull String userId) {
     return toBuilder().setSession(getSession().withUserId(userId)).build();
   }
 
+  @AutoValue
+  public abstract static class FilesPayload {
+
+    @NonNull
+    public static Builder builder() {
+      return new AutoValue_CrashlyticsReport_FilesPayload.Builder();
+    }
+
+    @NonNull
+    public abstract ImmutableList<File> getFiles();
+
+    @NonNull
+    public abstract String getOrgId();
+
+    @AutoValue
+    public abstract static class File {
+
+      @NonNull
+      public static Builder builder() {
+        return new AutoValue_CrashlyticsReport_FilesPayload_File.Builder();
+      }
+
+      @NonNull
+      public abstract String getFilename();
+
+      @NonNull
+      public abstract byte[] getContents();
+
+      /** Builder for {@link File}. */
+      @AutoValue.Builder
+      public abstract static class Builder {
+
+        public abstract Builder setFilename(String value);
+
+        public abstract Builder setContents(byte[] value);
+
+        public abstract File build();
+      }
+    }
+
+    /** Builder for {@link FilesPayload}. */
+    @AutoValue.Builder
+    public abstract static class Builder {
+
+      public abstract Builder setFiles(ImmutableList<File> value);
+
+      public abstract Builder setOrgId(String value);
+
+      public abstract FilesPayload build();
+    }
+  }
+
   @AutoValue
   public abstract static class CustomAttribute {
 
@@ -906,6 +957,9 @@ public abstract static class Builder {
     @NonNull
     public abstract Builder setSession(@NonNull Session value);
 
+    @NonNull
+    public abstract Builder setNdkPayload(FilesPayload value);
+
     @NonNull
     public abstract CrashlyticsReport build();
   }