Convert HTMLFrameOwnerElement and FocusController to use Frame.

Source/web/SpellCheckerClientImpl.cpp

Index: Source/web/SpellCheckerClientImpl.cpp
diff --git a/Source/web/SpellCheckerClientImpl.cpp b/Source/web/SpellCheckerClientImpl.cpp
index 224be4ec2ebb57d3c3771571734cdac93e55f4da..4425752dcb9b5987a102aca9c8473a2d61716026 100644
--- a/Source/web/SpellCheckerClientImpl.cpp
+++ b/Source/web/SpellCheckerClientImpl.cpp
@@ -56,7 +56,9 @@ bool SpellCheckerClientImpl::shouldSpellcheckByDefault()
 {
     // Spellcheck should be enabled for all editable areas (such as textareas,
     // contentEditable regions, designMode docs and inputs).
-    const LocalFrame* frame = m_webView->focusedWebCoreFrame();
+    if (!m_webView->focusedWebCoreFrame()->isLocalFrame())
+        return false;
+    const LocalFrame* frame = toLocalFrame(m_webView->focusedWebCoreFrame());
     if (!frame)
         return false;
     if (frame->spellChecker().isSpellCheckingEnabledInFocusedNode())
@@ -100,11 +102,13 @@ void SpellCheckerClientImpl::toggleContinuousSpellChecking()
         }
     } else {
         m_spellCheckThisFieldStatus = SpellCheckForcedOn;
-        if (LocalFrame* frame = m_webView->focusedWebCoreFrame()) {
-            VisibleSelection frameSelection = frame->selection().selection();
-            // If a selection is in an editable element spell check its content.
-            if (Element* rootEditableElement = frameSelection.rootEditableElement()) {
-                frame->spellChecker().didBeginEditing(rootEditableElement);
+        if (m_webView->focusedWebCoreFrame()->isLocalFrame()) {
+            if (LocalFrame* frame = toLocalFrame(m_webView->focusedWebCoreFrame())) {
+                VisibleSelection frameSelection = frame->selection().selection();
+                // If a selection is in an editable element spell check its content.
+                if (Element* rootEditableElement = frameSelection.rootEditableElement()) {
+                    frame->spellChecker().didBeginEditing(rootEditableElement);
+                }
             }
         }
     }
@@ -112,13 +116,13 @@ void SpellCheckerClientImpl::toggleContinuousSpellChecking()
 
 bool SpellCheckerClientImpl::isGrammarCheckingEnabled()
 {
-    const LocalFrame* frame = m_webView->focusedWebCoreFrame();
+    const LocalFrame* frame = toLocalFrame(m_webView->focusedWebCoreFrame());
     return frame && frame->settings() && (frame->settings()->asynchronousSpellCheckingEnabled() || frame->settings()->unifiedTextCheckerEnabled());
 }
 
 bool SpellCheckerClientImpl::shouldEraseMarkersAfterChangeSelection(TextCheckingType type) const
 {
-    const LocalFrame* frame = m_webView->focusedWebCoreFrame();
+    const Frame* frame = m_webView->focusedWebCoreFrame();
     return !frame || !frame->settings() || (!frame->settings()->asynchronousSpellCheckingEnabled() && !frame->settings()->unifiedTextCheckerEnabled());
 }