diff: restore binary compatibility

GitOrigin-RevId: 38b9d68efc61b50fd5264aa4ccb7622b8742d01f

platform/diff-impl/src/com/intellij/diff/contents/DocumentContentImpl.java

@@ -18,14 +18,23 @@ package com.intellij.diff.contents;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.fileTypes.FileType;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.util.LineSeparator;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.nio.charset.Charset;
+
 /**
  * Allows to compare some text associated with document.
  */
 public class DocumentContentImpl extends DocumentContentBase {
   @Nullable private final FileType myType;
+  @Nullable private final VirtualFile myHighlightFile;
+
+  @Nullable private final LineSeparator mySeparator;
+  @Nullable private final Charset myCharset;
+  @Nullable private final Boolean myBOM;
 
   public DocumentContentImpl(@NotNull Document document) {
     this(null, document, null);
@@ -34,8 +43,40 @@ public class DocumentContentImpl extends DocumentContentBase {
   public DocumentContentImpl(@Nullable Project project,
                              @NotNull Document document,
                              @Nullable FileType type) {
+    this(project, document, type, null, null, null, null);
+  }
+
+  public DocumentContentImpl(@Nullable Project project,
+                             @NotNull Document document,
+                             @Nullable FileType type,
+                             @Nullable VirtualFile highlightFile,
+                             @Nullable LineSeparator separator,
+                             @Nullable Charset charset,
+                             @Nullable Boolean bom) {
     super(project, document);
     myType = type;
+    myHighlightFile = highlightFile;
+    mySeparator = separator;
+    myCharset = charset;
+    myBOM = bom;
+  }
+
+  @Nullable
+  @Override
+  public VirtualFile getHighlightFile() {
+    return myHighlightFile;
+  }
+
+  @Nullable
+  @Override
+  public LineSeparator getLineSeparator() {
+    return mySeparator;
+  }
+
+  @Override
+  @Nullable
+  public Boolean hasBom() {
+    return myBOM;
   }
 
   @Nullable
@@ -43,4 +84,10 @@ public class DocumentContentImpl extends DocumentContentBase {
   public FileType getContentType() {
     return myType;
   }
+
+  @Nullable
+  @Override
+  public Charset getCharset() {
+    return myCharset;
+  }
 }