Refactor AutocompleteEditViewGtk so that AutocompleteEditView impl can be swapped.

chrome/browser/autocomplete/autocomplete_edit_view.h

Index: chrome/browser/autocomplete/autocomplete_edit_view.h
diff --git a/chrome/browser/autocomplete/autocomplete_edit_view.h b/chrome/browser/autocomplete/autocomplete_edit_view.h
index 439b2edce7b6cb36baa3a94efebf4392095694e7..a69e1805593703f7d1e8a8d04db2a2d7363dd39d 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view.h
+++ b/chrome/browser/autocomplete/autocomplete_edit_view.h
@@ -24,6 +24,12 @@ class CommandUpdater;
 class GURL;
 class TabContents;
 
+#if defined(TOOLKIT_VIEWS)
+namespace views {
+class View;
+}  // namespace views
+#endif
+
 class AutocompleteEditView {
  public:
   // Used by the automation system for getting at the model from the view.
@@ -152,7 +158,23 @@ class AutocompleteEditView {
   // Returns the command updater for this view.
   virtual CommandUpdater* GetCommandUpdater() = 0;
 
- protected:
+#if defined(TOOLKIT_VIEWS)
+  // Adds the autocomplete edit view to view hierarchy and
+  // returns the views::View of the edit view.
+  virtual views::View* AddToView(views::View* parent) = 0;
+
+  // Returns the width in pixels needed to display the current text. The
+  // returned value includes margins.
+  virtual int TextWidth() const = 0;
+
+  // Commits the suggested text.
+  virtual bool CommitInstantSuggestion(const std::wstring& typed_text,
+                                       const std::wstring& suggested_text) = 0;
+
+  // Shows the instant suggestion text.
+  virtual void SetInstantSuggestion(const string16& input) = 0;
+#endif
+
   virtual ~AutocompleteEditView() {}
 };