Prune CreateVisiblePositionDeprecated from Editor::firstRectForRange

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

Index: third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
index 132364a8ffea5ca12541469836fe9348350d9801..9a0a197d941fb125ea7bed701bc26998ad2690c1 100644
--- a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
+++ b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
@@ -751,12 +751,16 @@ bool WebFrameWidgetImpl::selectionBounds(WebRect& anchor, WebRect& focus) const
         return false;
 
     FrameSelection& selection = localFrame->selection();
+    if (selection.isNone())
+        return false;
 
-    if (selection.isCaret()) {
-        // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
-        // needs to be audited.  See http://crbug.com/590369 for more details.
-        localFrame->document()->updateStyleAndLayoutIgnorePendingStylesheets();
+    // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
+    // needs to be audited.  See http://crbug.com/590369 for more details.
+    localFrame->document()->updateStyleAndLayoutIgnorePendingStylesheets();
+
+    DocumentLifecycle::DisallowTransitionScope disallowTransition(localFrame->document()->lifecycle());
 
+    if (selection.isCaret()) {
         anchor = focus = selection.absoluteCaretBounds();
     } else {
         const EphemeralRange selectedRange = selection.selection().toNormalizedEphemeralRange();