Fix invalid selection produced when dragging mouse outside the SVG text element

third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js

Index: third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js
diff --git a/third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js b/third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js
index 5869ecdbdb6fbf664c636587b96855855fe658a7..7d029556b4bdcf0d9f8e215c562b9b464ca58f61 100644
--- a/third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js
+++ b/third_party/WebKit/LayoutTests/svg/text/resources/SelectionTestCase.js
@@ -130,3 +130,24 @@ function selectRange(id, start, end, expectedText) {
         document.getElementById("container").appendChild(textElement);
     }
 }
+
+function selectTextFromCharToPoint(selectionInfo, mouse, expectedRange) {
+  var element = document.getElementById(selectionInfo.id);
+  var startPos = element.getStartPositionOfChar(selectionInfo.offset);
+  var absStartPos = toAbsoluteCoordinates(startPos, element);
+  if (window.eventSender) {
+    eventSender.mouseMoveTo(absStartPos.x, absStartPos.y);
+    eventSender.mouseDown();
+    eventSender.mouseMoveTo(mouse.x, mouse.y);
+    eventSender.mouseUp();
+  }
+
+  range = window.getSelection().getRangeAt(0);
+  shouldBe("range.startOffset", expectedRange.start);
+  shouldBe("range.endOffset", expectedRange.end);
+  if (window.eventSender) {
+    eventSender.mouseMoveTo(0,0);
+    eventSender.mouseDown();
+    eventSender.mouseUp();
+  }
+}