Remove methods of TextIterator that take Range objects

Source/core/editing/iterators/TextIteratorTest.cpp

Index: Source/core/editing/iterators/TextIteratorTest.cpp
diff --git a/Source/core/editing/iterators/TextIteratorTest.cpp b/Source/core/editing/iterators/TextIteratorTest.cpp
index ab2f44ec01887c306c7e3fa8ad58c31e76ebe114..c1fde6a6ac61d0519a50035b51f05c610d131428 100644
--- a/Source/core/editing/iterators/TextIteratorTest.cpp
+++ b/Source/core/editing/iterators/TextIteratorTest.cpp
@@ -85,7 +85,7 @@ void TextIteratorTest::SetUp()
 Vector<String> TextIteratorTest::iterate(TextIteratorBehavior iteratorBehavior)
 {
     RefPtrWillBeRawPtr<Range> range = getBodyRange();
-    TextIterator iterator(range.get(), iteratorBehavior);
+    TextIterator iterator(range->startPosition(), range->endPosition(), iteratorBehavior);
     return iterateWithIterator(iterator);
 }
 
@@ -588,7 +588,7 @@ TEST_F(TextIteratorTest, RangeLengthWithReplacedElements)
     Node* divNode = document().getElementById("div");
     RefPtrWillBeRawPtr<Range> range = Range::create(document(), divNode, 0, divNode, 3);
 
-    EXPECT_EQ(3, TextIterator::rangeLength(range.get()));
+    EXPECT_EQ(3, TextIterator::rangeLength(range->startPosition(), range->endPosition()));
 }
 
 TEST_F(TextIteratorTest, SubrangeWithReplacedElements)