Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
@@ skipping 22 matching lines @@
 #import "chrome/browser/ui/cocoa/content_settings/content_setting_bubble_cocoa.h"
 #import "chrome/browser/ui/cocoa/extensions/extension_popup_controller.h"
 #import "chrome/browser/ui/cocoa/first_run_bubble_controller.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.h"
 #import "chrome/browser/ui/cocoa/location_bar/content_setting_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/ev_bubble_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/keyword_hint_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/location_icon_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h"
+#import "chrome/browser/ui/cocoa/location_bar/mic_search_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/page_action_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/star_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/translate_decoration.h"
 #import "chrome/browser/ui/cocoa/location_bar/zoom_decoration.h"
 #import "chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
 #include "chrome/browser/ui/content_settings/content_setting_bubble_model.h"
 #include "chrome/browser/ui/content_settings/content_setting_image_model.h"
 #include "chrome/browser/ui/passwords/manage_passwords_ui_controller.h"
@@ skipping 41 matching lines @@
       omnibox_view_(new OmniboxViewMac(this, profile, command_updater, field)),
       field_(field),
       location_icon_decoration_(new LocationIconDecoration(this)),
       selected_keyword_decoration_(new SelectedKeywordDecoration()),
       ev_bubble_decoration_(
           new EVBubbleDecoration(location_icon_decoration_.get())),
       star_decoration_(new StarDecoration(command_updater)),
       translate_decoration_(new TranslateDecoration(command_updater)),
       zoom_decoration_(new ZoomDecoration(this)),
       keyword_hint_decoration_(new KeywordHintDecoration()),
+      mic_search_decoration_(new MicSearchDecoration(command_updater)),
       manage_passwords_decoration_(
           new ManagePasswordsDecoration(command_updater, this)),
       browser_(browser),
       location_bar_visible_(true),
       weak_ptr_factory_(this) {
   for (ContentSettingsType type :
        ContentSettingBubbleModel::GetSupportedBubbleTypes()) {
     content_setting_decorations_.push_back(
         new ContentSettingDecoration(type, this, profile));
   }
 
   edit_bookmarks_enabled_.Init(
       bookmarks::prefs::kEditBookmarksEnabled, profile->GetPrefs(),
       base::Bind(&LocationBarViewMac::OnEditBookmarksEnabledChanged,
                  base::Unretained(this)));
 
+  browser_->search_model()->AddObserver(this);
+
   ui_zoom::ZoomEventManager::GetForBrowserContext(profile)
       ->AddZoomEventManagerObserver(this);
 
   [[field_ cell] setIsPopupMode:
       !browser->SupportsWindowFeature(Browser::FEATURE_TABSTRIP)];
 
   // Sets images for the decorations, and performs a layout. This call ensures
   // that this class is in a consistent state after initialization.
   OnChanged();
 }
 
 LocationBarViewMac::~LocationBarViewMac() {
   // Disconnect from cell in case it outlives us.
   [[field_ cell] clearDecorations];
 
+  browser_->search_model()->RemoveObserver(this);
   ui_zoom::ZoomEventManager::GetForBrowserContext(profile())
       ->RemoveZoomEventManagerObserver(this);
 }
 
 void LocationBarViewMac::ShowFirstRunBubble() {
   // We need the browser window to be shown before we can show the bubble, but
   // we get called before that's happened.
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&LocationBarViewMac::ShowFirstRunBubbleInternal,
                             weak_ptr_factory_.GetWeakPtr()));
@@ skipping 253 matching lines @@
     [cell addRightDecoration:page_action_decorations_[i]];
   }
 
   for (ScopedVector<ContentSettingDecoration>::iterator i =
        content_setting_decorations_.begin();
        i != content_setting_decorations_.end(); ++i) {
     [cell addRightDecoration:*i];
   }
 
   [cell addRightDecoration:keyword_hint_decoration_.get()];
+  [cell addRightDecoration:mic_search_decoration_.get()];
 
   // By default only the location icon is visible.
   location_icon_decoration_->SetVisible(true);
   selected_keyword_decoration_->SetVisible(false);
   ev_bubble_decoration_->SetVisible(false);
   keyword_hint_decoration_->SetVisible(false);
 
   // Get the keyword to use for keyword-search and hinting.
   const base::string16 keyword = omnibox_view_->model()->keyword();
   base::string16 short_name;
@@ skipping 92 matching lines @@
   omnibox_view_->ResetTabState(contents);
 }
 
 void LocationBarViewMac::Update(const WebContents* contents) {
   UpdateManagePasswordsIconAndBubble();
   UpdateBookmarkStarVisibility();
   UpdateTranslateDecoration();
   UpdateZoomDecoration(/*default_zoom_changed=*/false);
   RefreshPageActionDecorations();
   RefreshContentSettingsDecorations();
+  UpdateMicSearchDecorationVisibility();
   if (contents)
     omnibox_view_->OnTabChanged(contents);
   else
     omnibox_view_->Update();
   OnChanged();
 }
 
 void LocationBarViewMac::UpdateWithoutTabRestore() {
   Update(nullptr);
 }
@@ skipping 40 matching lines @@
       profile())->GetTemplateURLForKeyword(keyword);
   if (template_url &&
       (template_url->GetType() == TemplateURL::OMNIBOX_API_EXTENSION)) {
     return extensions::OmniboxAPI::Get(profile())->
         GetOmniboxIcon(template_url->GetExtensionId()).AsNSImage();
   }
 
   return OmniboxViewMac::ImageForResource(IDR_OMNIBOX_SEARCH);
 }
 
+void LocationBarViewMac::ModelChanged(const SearchModel::State& old_state,
+                                      const SearchModel::State& new_state) {
+  if (UpdateMicSearchDecorationVisibility())
+    Layout();
+}
+
 void LocationBarViewMac::PostNotification(NSString* notification) {
   [[NSNotificationCenter defaultCenter] postNotificationName:notification
                                         object:[NSValue valueWithPointer:this]];
 }
 
 PageActionDecoration* LocationBarViewMac::GetPageActionDecoration(
     ExtensionAction* page_action) {
   DCHECK(page_action);
   for (size_t i = 0; i < page_action_decorations_.size(); ++i) {
     if (page_action_decorations_[i]->GetPageAction() == page_action)
@@ skipping 117 matching lines @@
 
   return zoom_decoration_->UpdateIfNecessary(
       ui_zoom::ZoomController::FromWebContents(web_contents),
       default_zoom_changed);
 }
 
 void LocationBarViewMac::OnDefaultZoomLevelChanged() {
   if (UpdateZoomDecoration(/*default_zoom_changed=*/true))
     OnDecorationsChanged();
 }
+
+bool LocationBarViewMac::UpdateMicSearchDecorationVisibility() {
+  bool is_visible = !GetToolbarModel()->input_in_progress() &&
+                    browser_->search_model()->voice_search_supported();
+  if (mic_search_decoration_->IsVisible() == is_visible)
+    return false;
+  mic_search_decoration_->SetVisible(is_visible);
+  return true;
+}