Extracting placeholder information from Webkit to Blimp

third_party/WebKit/Source/core/editing/InputMethodController.cpp

Index: third_party/WebKit/Source/core/editing/InputMethodController.cpp
diff --git a/third_party/WebKit/Source/core/editing/InputMethodController.cpp b/third_party/WebKit/Source/core/editing/InputMethodController.cpp
index 3681b8a9ffae6dd4813029d118f21824d72bd981..b3a7a3b177aac1a6203fad34b59a295962ac0e6c 100644
--- a/third_party/WebKit/Source/core/editing/InputMethodController.cpp
+++ b/third_party/WebKit/Source/core/editing/InputMethodController.cpp
@@ -967,6 +967,9 @@ WebTextInputInfo InputMethodController::textInputInfo() const {
   info.value = plainText(EphemeralRange::rangeOfContents(*element),
                          TextIteratorEmitsObjectReplacementCharacter);
 
+  element = frame().document()->focusedElement();

[David Trainor- moved to gerrit, 2016/10/26 01:36:42]

This still has the problem of being in the common path for typical text entry
right?  I think once we add label we don't want to add any extra work here.  Is
there a way to pull out these attributes that doesn't go through this code path?

Also will this work for non-text input fields (for label in the future)?

+  info.placeholder = element->fastGetAttribute(HTMLNames::placeholderAttr);
+
   if (info.value.isEmpty())
     return info;