Refactor Autofill for OOPIF, step 1: add autofillClient to WebLocalFrame

Source/web/ChromeClientImpl.h

Index: Source/web/ChromeClientImpl.h
diff --git a/Source/web/ChromeClientImpl.h b/Source/web/ChromeClientImpl.h
index bd06ef3d90bebfe967f515fc1ac1a0f4e6a8fcae..c48f6ae377962f714ba68bfe6e4d64de281ff198 100644
--- a/Source/web/ChromeClientImpl.h
+++ b/Source/web/ChromeClientImpl.h
@@ -126,7 +126,6 @@ public:
     virtual bool paintCustomOverhangArea(GraphicsContext*, const IntRect&, const IntRect&, const IntRect&) override;
     virtual PassOwnPtrWillBeRawPtr<ColorChooser> createColorChooser(LocalFrame*, ColorChooserClient*, const Color&) override;
     virtual PassRefPtr<DateTimeChooser> openDateTimeChooser(DateTimeChooserClient*, const DateTimeChooserParameters&) override;
-    virtual void openTextDataListChooser(HTMLInputElement&) override;
     virtual void runOpenPanel(LocalFrame*, PassRefPtr<FileChooser>) override;
     virtual void enumerateChosenDirectory(FileChooser*) override;
     virtual void setCursor(const Cursor&) override;
@@ -165,10 +164,12 @@ public:
     virtual bool requestPointerLock() override;
     virtual void requestPointerUnlock() override;
 
-    virtual void didAssociateFormControls(const WillBeHeapVector<RefPtrWillBeMember<Element> >&) override;
+    // AutofillClient pass throughs:
+    virtual void didAssociateFormControls(const WillBeHeapVector<RefPtrWillBeMember<Element> >&, LocalFrame*) override;
+    virtual void handleKeyboardEventOnTextField(HTMLInputElement&, KeyboardEvent&) override;
     virtual void didChangeValueInTextField(HTMLFormControlElement&) override;
     virtual void didEndEditingOnTextField(HTMLInputElement&) override;
-    virtual void handleKeyboardEventOnTextField(HTMLInputElement&, KeyboardEvent&) override;
+    virtual void openTextDataListChooser(HTMLInputElement&) override;
     virtual void textFieldDataListChanged(HTMLFormControlElement&) override;
 
     virtual void didCancelCompositionOnSelectionChange() override;