WebRange-ify WebWidget::compositionRange.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index c1852580d53261779ba4cb4bdcfdf9b756c4120d..5cb7986a2c98f56a3f7b40c0e90c00551473ef9f 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -1878,12 +1878,12 @@ void RenderWidget::GetCompositionRange(gfx::Range* range) {
   if (focused_pepper_plugin_)
     return;
 #endif
-  size_t location, length;
-  if (webwidget_->compositionRange(&location, &length)) {
-    range->set_start(location);
-    range->set_end(location + length);
+  WebRange web_range = webwidget_->compositionRange();
+  if (!web_range.isNull()) {
+    range->set_start(web_range.startOffset());
+    range->set_end(web_range.endOffset());
   } else {
-    WebRange web_range = webwidget_->caretOrSelectionRange();
+    web_range = webwidget_->caretOrSelectionRange();
     range->set_start(web_range.startOffset());
     range->set_end(web_range.endOffset());
   }