Clean ups for trailing whitespace and block style

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/cleanup/style/Style_trailingSpace_CleanUp.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/cleanup/style/Style_trailingSpace_CleanUp.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/cleanup/style/Style_trailingSpace_CleanUp.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/cleanup/style/Style_trailingSpace_CleanUp.java
new file mode 100644
index 0000000000000000000000000000000000000000..789c57ad79185b51c5a114d3f5449fa899b2516c
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/cleanup/style/Style_trailingSpace_CleanUp.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.tools.ui.internal.cleanup.style;
+
+import com.google.common.base.CharMatcher;
+import com.google.dart.compiler.util.apache.StringUtils;
+import com.google.dart.tools.internal.corext.SourceRangeFactory;
+import com.google.dart.tools.ui.internal.cleanup.migration.AbstractMigrateCleanUp;
+
+/**
+ * Removes trailing whitespace.
+ * 
+ * @coverage dart.editor.ui.cleanup
+ */
+public class Style_trailingSpace_CleanUp extends AbstractMigrateCleanUp {
+  @Override
+  protected void createFix() throws Exception {
+    String eol = utils.getEndOfLine();
+    String source = unit.getSource();
+    String[] lines = StringUtils.splitPreserveAllTokens(source, eol);
+    int offset = 0;
+    for (String line : lines) {
+      int lastWhitespace = CharMatcher.WHITESPACE.negate().lastIndexIn(line) + 1;
+      int spaceEnd = offset + line.length();
+      int spaceStart = offset + lastWhitespace;
+      if (spaceEnd != spaceStart) {
+        addReplaceEdit(SourceRangeFactory.forStartEnd(spaceStart, spaceEnd), "");
+      }
+      offset += line.length() + eol.length();
+    }
+  }
+}