Spell check whole content of an editable element when it gets focused.

Source/core/html/HTMLTextAreaElement.cpp

Index: Source/core/html/HTMLTextAreaElement.cpp
diff --git a/Source/core/html/HTMLTextAreaElement.cpp b/Source/core/html/HTMLTextAreaElement.cpp
index 88d289f6b38792da5ed7b7dbbef1868dd1340923..f82dd3679cb4eb6afcfb9a4ce3eac2ce80e93050 100644
--- a/Source/core/html/HTMLTextAreaElement.cpp
+++ b/Source/core/html/HTMLTextAreaElement.cpp
@@ -36,6 +36,7 @@
 #include "core/dom/ExceptionCodePlaceholder.h"
 #include "core/dom/Text.h"
 #include "core/dom/shadow/ShadowRoot.h"
+#include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/TextIterator.h"
 #include "core/html/FormController.h"
@@ -270,6 +271,12 @@ void HTMLTextAreaElement::defaultEventHandler(Event* event)
     HTMLTextFormControlElement::defaultEventHandler(event);
 }
 
+void HTMLTextAreaElement::handleFocusEvent(Element* oldFocusedNode, FocusDirection direction)
+{
+    if (Frame* frame = document()->frame())
+        frame->editor()->textAreaDidBeginEditing(this);
+}
+
 void HTMLTextAreaElement::subtreeHasChanged()
 {
     setChangedSinceLastFormControlChangeEvent(true);