Accept keyword by pressing space.

chrome/browser/autocomplete/autocomplete_edit_view_win.cc

Index: chrome/browser/autocomplete/autocomplete_edit_view_win.cc
diff --git a/chrome/browser/autocomplete/autocomplete_edit_view_win.cc b/chrome/browser/autocomplete/autocomplete_edit_view_win.cc
index 7b9354d2dc2d86dac5b111a20b3672b138967753..05c09fe0499cdacba5468139b51f5766438bfc74 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view_win.cc
+++ b/chrome/browser/autocomplete/autocomplete_edit_view_win.cc
@@ -861,8 +861,11 @@ bool AutocompleteEditViewWin::OnAfterPossibleChangeInternal(
       new_sel.cpMax = length;
     SetSelectionRange(new_sel);
   }
-  const bool selection_differs = (new_sel.cpMin != sel_before_change_.cpMin) ||
-      (new_sel.cpMax != sel_before_change_.cpMax);
+  const bool selection_differs =
+      ((new_sel.cpMin != new_sel.cpMax) ||
+       (sel_before_change_.cpMin != sel_before_change_.cpMax)) &&
+      ((new_sel.cpMin != sel_before_change_.cpMin) ||
+       (new_sel.cpMax != sel_before_change_.cpMax));
   const bool at_end_of_edit =
       (new_sel.cpMin == length) && (new_sel.cpMax == length);
 
@@ -1692,8 +1695,7 @@ void AutocompleteEditViewWin::OnPaste() {
   if (!text.empty()) {
     // If this paste will be replacing all the text, record that, so we can do
     // different behaviors in such a case.
-    if (IsSelectAll())
-      model_->on_paste_replacing_all();
+    model_->OnPaste(IsSelectAll());
     // Force a Paste operation to trigger the text_changed code in
     // OnAfterPossibleChange(), even if identical contents are pasted into the
     // text box.
@@ -1972,7 +1974,7 @@ bool AutocompleteEditViewWin::OnKeyDownOnlyWritable(TCHAR key,
     }
 
     case VK_TAB: {
-      if (model_->is_keyword_hint() && !model_->keyword().empty()) {
+      if (model_->is_keyword_hint() && controller_->IsKeywordHintVisible()) {
         // Accept the keyword.
         ScopedFreeze freeze(this, GetTextObjectModel());
         model_->AcceptKeyword();