Remove unnecessary codes (associated with save image feature)

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index a6c28a74e72c4c6e712e2d07c185f1504890f323..0df4934130c65939421f65bb26af8d79e34c2162 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -3318,8 +3318,10 @@ void WebViewImpl::copyImageAt(const WebPoint& point)
         return;
 
     HitTestResult result = hitTestResultForWindowPos(point);
+    Node* node = result.innerNonSharedNode();
+    ASSERT(node);
 
-    if (result.absoluteImageURLIncludingCanvasDataURL().isEmpty()) {
+    if (!isHTMLCanvasElement(*node) && result.absoluteImageURL().isEmpty()) {
         // There isn't actually an image at these coordinates.  Might be because
         // the window scrolled while the context menu was open or because the page
         // changed itself between when we thought there was an image here and when