Add dispatcher for VoiceSearch commands

During the removal of the VoiceSearch commands, ContentSuggestions was
forgotten. This CL uses the new API to start voice search with the
dispatcher.

Bug: 750636
Change-Id: Ie1cb80f0beb2969868a565c2c60c0df564c10bc8
Reviewed-on: https://chromium-review.googlesource.com/593660Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Reviewed-by: Jean-François Geyelin <jif@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#490759}

ios/chrome/app/startup/setup_debugging.mm

@@ -29,6 +29,7 @@ void swizzleUIImageImageNamed() {
   // TODO(crbug.com/720355): Add missing image.
   [whiteList addObject:@"find_close_pressed_incognito"];
   // TODO(crbug.com/720338): Add missing images.
+  [whiteList addObject:@"glif-mic-to-dots-small_37"];
   [whiteList addObject:@"glif-mic-to-dots-large_37"];
   [whiteList addObject:@"glif-google-to-dots_28"];
   // TODO(crbug.com/721338): Add missing image.

ios/chrome/browser/content_suggestions/content_suggestions_coordinator.h

@@ -12,6 +12,7 @@ namespace ios {
 class ChromeBrowserState;
 }
 
+@protocol ApplicationCommands;
 @protocol BrowserCommands;
 @protocol ChromeExecuteCommand;
 @class ContentSuggestionsHeaderViewController;
@@ -29,8 +30,11 @@ class WebStateList;
 // URLLoader used to open pages.
 @property(nonatomic, weak) id<UrlLoader> URLLoader;
 @property(nonatomic, assign) WebStateList* webStateList;
-@property(nonatomic, weak)
-    id<BrowserCommands, ChromeExecuteCommand, OmniboxFocuser, UrlLoader>
+@property(nonatomic, weak) id<ApplicationCommands,
+                              BrowserCommands,
+                              ChromeExecuteCommand,
+                              OmniboxFocuser,
+                              UrlLoader>
     dispatcher;
 // Whether the Suggestions UI is displayed. If this is true, start is a no-op.
 @property(nonatomic, readonly) BOOL visible;

ios/chrome/browser/content_suggestions/content_suggestions_header_view_controller.h

@@ -13,6 +13,7 @@
 #import "ios/chrome/browser/ui/toolbar/toolbar_owner.h"
 #import "ios/public/provider/chrome/browser/voice/logo_animation_controller.h"
 
+@protocol ApplicationCommands;
 @protocol ContentSuggestionsCollectionSynchronizing;
 @protocol ContentSuggestionsHeaderViewControllerDelegate;
 @protocol ContentSuggestionsHeaderViewControllerCommandHandler;
@@ -30,7 +31,8 @@ class ReadingListModel;
                        ToolbarOwner,
                        LogoAnimationControllerOwnerOwner>
 
-@property(nonatomic, weak) id<UrlLoader, OmniboxFocuser> dispatcher;
+@property(nonatomic, weak) id<ApplicationCommands, OmniboxFocuser, UrlLoader>
+    dispatcher;
 @property(nonatomic, weak) id<ContentSuggestionsHeaderViewControllerDelegate>
     delegate;
 @property(nonatomic, weak)

ios/chrome/browser/content_suggestions/content_suggestions_header_view_controller.mm

@@ -5,12 +5,15 @@
 #import "ios/chrome/browser/content_suggestions/content_suggestions_header_view_controller.h"
 
 #include "base/logging.h"
+#include "base/mac/foundation_util.h"
 #include "base/metrics/user_metrics.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/content_suggestions/content_suggestions_header_view_controller_delegate.h"
 #import "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
+#import "ios/chrome/browser/ui/commands/application_commands.h"
 #import "ios/chrome/browser/ui/commands/generic_chrome_command.h"
 #include "ios/chrome/browser/ui/commands/ios_command_ids.h"
+#include "ios/chrome/browser/ui/commands/start_voice_search_command.h"
 #import "ios/chrome/browser/ui/content_suggestions/content_suggestions_collection_synchronizing.h"
 #import "ios/chrome/browser/ui/content_suggestions/content_suggestions_collection_utils.h"
 #import "ios/chrome/browser/ui/ntp/new_tab_page_header_view.h"
@@ -254,7 +257,10 @@ const CGFloat kHintLabelSidePadding = 12;
 - (void)loadVoiceSearch:(id)sender {
   DCHECK(self.voiceSearchIsEnabled);
   base::RecordAction(UserMetricsAction("MobileNTPMostVisitedVoiceSearch"));
-  [sender chromeExecuteCommand:sender];
+  UIView* view = base::mac::ObjCCastStrict<UIView>(sender);
+  StartVoiceSearchCommand* command =
+      [[StartVoiceSearchCommand alloc] initWithOriginView:view];
+  [self.dispatcher startVoiceSearch:command];
 }
 
 - (void)preloadVoiceSearch:(id)sender {