blink: clear tooltips on frame leaves

third_party/WebKit/Source/core/page/ChromeClient.cpp

Index: third_party/WebKit/Source/core/page/ChromeClient.cpp
diff --git a/third_party/WebKit/Source/core/page/ChromeClient.cpp b/third_party/WebKit/Source/core/page/ChromeClient.cpp
index 5c497c153df51b9605eb9d2c6445d8bd408280a1..704d763705215281362dd2eef792b1228f46ab41 100644
--- a/third_party/WebKit/Source/core/page/ChromeClient.cpp
+++ b/third_party/WebKit/Source/core/page/ChromeClient.cpp
@@ -170,6 +170,10 @@ void ChromeClient::mouseDidMoveOverElement(LocalFrame& frame,
     setToolTip(frame, result);
 }
 
+void ChromeClient::mouseDidLeave(LocalFrame& frame) {
+  clearToolTip(frame);
+}
+
 void ChromeClient::setToolTip(LocalFrame& frame, const HitTestResult& result) {
   // First priority is a tooltip for element with "title" attribute.
   TextDirection toolTipDirection;