[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/WebKit/chromium/src/WebPasswordFormUtils.h

Index: Source/WebKit/chromium/src/WebPasswordFormUtils.h
diff --git a/Source/WebKit/chromium/src/WebPasswordFormUtils.h b/Source/WebKit/chromium/src/WebPasswordFormUtils.h
index e7cad31eba5ce461eb00d6cc176911fa157a75e9..763f6910387084483f9375f525f87704941ef715 100644
--- a/Source/WebKit/chromium/src/WebPasswordFormUtils.h
+++ b/Source/WebKit/chromium/src/WebPasswordFormUtils.h
@@ -31,6 +31,7 @@
 #ifndef WebPasswordFormUtils_h
 #define WebPasswordFormUtils_h
 
+#include "heap/Handle.h"
 #include <wtf/Vector.h>
 #include <wtf/text/WTFString.h>
 
@@ -48,6 +49,7 @@ namespace WebKit {
 // password forms can use WebPasswordFormData.passwordShouldAutocomplete to
 // implement their own heuristics related autocomplete.
 struct PasswordFormFields {
+    // FIXME(oilpan): Move PasswordFormFields to the heap and use Members.
     WebCore::HTMLInputElement* userName;
     Vector<String> alternateUserNames;
     Vector<WebCore::HTMLInputElement*> passwords;