Implement {Start,Stop}CapturingKeyStrokes for Instant.

chrome/browser/ui/views/omnibox/omnibox_view_views.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 551 matching lines @@
   // the text, or in the middle of composition.
   ui::Range sel;
   textfield_->GetSelectedRange(&sel);
   bool no_inline_autocomplete =
       sel.GetMax() < GetTextLength() || textfield_->IsIMEComposing();
 
   model()->StartAutocomplete(!sel.is_empty(), no_inline_autocomplete);
 }
 
 void OmniboxViewViews::SetFocus() {
+  SetFocusVisibility(true);
   // In views-implementation, the focus is on textfield rather than OmniboxView.
   textfield_->RequestFocus();
 }
+
+void OmniboxViewViews::SetInvisibleFocus() {
+  SetFocusVisibility(false);
+  // In views-implementation, the focus is on textfield rather than OmniboxView.
+  textfield_->RequestFocus();
+}
 
 void OmniboxViewViews::OnTemporaryTextMaybeChanged(
     const string16& display_text,
     bool save_original_selection) {
   if (save_original_selection)
     textfield_->GetSelectedRange(&saved_temporary_selection_);
 
   SetWindowTextAndCaretPos(display_text, display_text.length(), false, true);
 }
 
 bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
     const string16& display_text,
     size_t user_text_length) {
   if (display_text == GetText())
     return false;
   ui::Range range(display_text.size(), user_text_length);
   SetTextAndSelectedRange(display_text, range);
   TextChanged();
   return true;
 }
 
 void OmniboxViewViews::OnRevertTemporaryText() {
   textfield_->SelectRange(saved_temporary_selection_);
   TextChanged();
 }
 
 void OmniboxViewViews::OnBeforePossibleChange() {
+  SetFocusVisibility(true);
   // Record our state.
   text_before_change_ = GetText();
   textfield_->GetSelectedRange(&sel_before_change_);
   ime_composing_before_change_ = textfield_->IsIMEComposing();
 }
 
 bool OmniboxViewViews::OnAfterPossibleChange() {
   ui::Range new_sel;
   textfield_->GetSelectedRange(&new_sel);
 
@@ skipping 317 matching lines @@
   if (!text.empty()) {
     // Record this paste, so we can do different behavior.
     model()->on_paste();
     // Force a Paste operation to trigger the text_changed code in
     // OnAfterPossibleChange(), even if identical contents are pasted into the
     // text box.
     text_before_change_.clear();
     textfield_->ReplaceSelection(text);
   }
 }
+
+void OmniboxViewViews::SetFocusVisibility(bool focus_is_visible) {
+  model()->OnFocusVisibilityChange(focus_is_visible);
+  // TODO(mathp): actually make focus invisible
+}