[Sharing] Hooked Up QR Code Generation Activity in Controller.

Added code to add the generate QR code activity to the activity service
controller behind its feature flag. Also added a simple unit test.

Bug: 1064990
Change-Id: Ib386f3bb8fa85d27094197b2febbc1a4c1d66a5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2127891
Commit-Queue: Sebastien Lalancette <seblalancette@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#754935}

ios/chrome/browser/ui/activity_services/BUILD.gn

@@ -38,6 +38,7 @@ source_set("activity_services") {
     "//ios/chrome/browser/snapshots",
     "//ios/chrome/browser/sync",
     "//ios/chrome/browser/tabs",
+    "//ios/chrome/browser/ui:feature_flags",
     "//ios/chrome/browser/ui/activity_services/activities",
     "//ios/chrome/browser/ui/activity_services/requirements",
     "//ios/chrome/browser/ui/commands",

ios/chrome/browser/ui/activity_services/activity_service_controller.mm

@@ -6,6 +6,7 @@
 
 #import <MobileCoreServices/MobileCoreServices.h>
 
+#include "base/feature_list.h"
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #include "base/metrics/user_metrics.h"
@@ -23,6 +24,7 @@
 #import "ios/chrome/browser/ui/activity_services/activities/bookmark_activity.h"
 #import "ios/chrome/browser/ui/activity_services/activities/copy_activity.h"
 #import "ios/chrome/browser/ui/activity_services/activities/find_in_page_activity.h"
+#import "ios/chrome/browser/ui/activity_services/activities/generate_qr_code_activity.h"
 #import "ios/chrome/browser/ui/activity_services/activities/print_activity.h"
 #import "ios/chrome/browser/ui/activity_services/activities/reading_list_activity.h"
 #import "ios/chrome/browser/ui/activity_services/activities/request_desktop_or_mobile_site_activity.h"
@@ -35,7 +37,9 @@
 #import "ios/chrome/browser/ui/activity_services/requirements/activity_service_presentation.h"
 #import "ios/chrome/browser/ui/activity_services/share_protocol.h"
 #import "ios/chrome/browser/ui/activity_services/share_to_data.h"
+#import "ios/chrome/browser/ui/commands/qr_generation_commands.h"
 #import "ios/chrome/browser/ui/commands/snackbar_commands.h"
+#include "ios/chrome/browser/ui/ui_feature_flags.h"
 #include "ios/chrome/browser/ui/util/ui_util.h"
 #import "ios/chrome/browser/ui/util/uikit_ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
@@ -74,8 +78,9 @@ NSString* const kActivityServicesSnackbarCategory =
 // Returns an array of UIActivity objects that can handle the given |data|.
 - (NSArray*)
     applicationActivitiesForData:(ShareToData*)data
-           browserCommandHandler:(id<BrowserCommands>)browserCommandHandler
-               findInPageHandler:(id<FindInPageCommands>)findInPageHandler
+                  commandHandler:(id<BrowserCommands,
+                                     FindInPageCommands,
+                                     QRGenerationCommands>)commandHandler
                    bookmarkModel:(bookmarks::BookmarkModel*)bookmarkModel
                 canSendTabToSelf:(BOOL)canSendTabToSelf;
 // Processes |extensionItems| returned from App Extension invocation returning
@@ -127,9 +132,10 @@ NSString* const kActivityServicesSnackbarCategory =
 
 - (void)shareWithData:(ShareToData*)data
             browserState:(ChromeBrowserState*)browserState
-              dispatcher:
-                  (id<BrowserCommands, FindInPageCommands, SnackbarCommands>)
-                      dispatcher
+              dispatcher:(id<BrowserCommands,
+                             FindInPageCommands,
+                             QRGenerationCommands,
+                             SnackbarCommands>)dispatcher
         passwordProvider:(id<ActivityServicePassword>)passwordProvider
         positionProvider:(id<ActivityServicePositioner>)positionProvider
     presentationProvider:(id<ActivityServicePresentation>)presentationProvider {
@@ -165,8 +171,7 @@ NSString* const kActivityServicesSnackbarCategory =
       initWithActivityItems:[self activityItemsForData:data]
       applicationActivities:[self
                                 applicationActivitiesForData:data
-                                       browserCommandHandler:dispatcher
-                                           findInPageHandler:dispatcher
+                                              commandHandler:dispatcher
                                                bookmarkModel:bookmarkModel
                                             canSendTabToSelf:canSendTabToSelf]];
 
@@ -284,8 +289,9 @@ NSString* const kActivityServicesSnackbarCategory =
 
 - (NSArray*)
     applicationActivitiesForData:(ShareToData*)data
-           browserCommandHandler:(id<BrowserCommands>)browserCommandHandler
-               findInPageHandler:(id<FindInPageCommands>)findInPageHandler
+                  commandHandler:(id<BrowserCommands,
+                                     FindInPageCommands,
+                                     QRGenerationCommands>)commandHandler
                    bookmarkModel:(bookmarks::BookmarkModel*)bookmarkModel
                 canSendTabToSelf:(BOOL)canSendTabToSelf {
   NSMutableArray* applicationActivities = [NSMutableArray array];
@@ -296,15 +302,14 @@ NSString* const kActivityServicesSnackbarCategory =
   if (data.shareURL.SchemeIsHTTPOrHTTPS()) {
     if (canSendTabToSelf) {
       SendTabToSelfActivity* sendTabToSelfActivity =
-          [[SendTabToSelfActivity alloc]
-              initWithDispatcher:browserCommandHandler];
+          [[SendTabToSelfActivity alloc] initWithDispatcher:commandHandler];
       [applicationActivities addObject:sendTabToSelfActivity];
     }
 
     ReadingListActivity* readingListActivity =
         [[ReadingListActivity alloc] initWithURL:data.shareURL
                                            title:data.title
-                                      dispatcher:browserCommandHandler];
+                                      dispatcher:commandHandler];
     [applicationActivities addObject:readingListActivity];
 
     if (bookmarkModel) {
@@ -313,27 +318,35 @@ NSString* const kActivityServicesSnackbarCategory =
       BookmarkActivity* bookmarkActivity =
           [[BookmarkActivity alloc] initWithURL:data.visibleURL
                                      bookmarked:bookmarked
-                                     dispatcher:browserCommandHandler];
+                                     dispatcher:commandHandler];
       [applicationActivities addObject:bookmarkActivity];
     }
 
+    if (base::FeatureList::IsEnabled(kQRCodeGeneration)) {
+      GenerateQrCodeActivity* generateQrCodeActivity =
+          [[GenerateQrCodeActivity alloc] initWithURL:data.shareURL
+                                                title:data.title
+                                           dispatcher:commandHandler];
+      [applicationActivities addObject:generateQrCodeActivity];
+    }
+
     if (data.isPageSearchable) {
       FindInPageActivity* findInPageActivity =
-          [[FindInPageActivity alloc] initWithHandler:findInPageHandler];
+          [[FindInPageActivity alloc] initWithHandler:commandHandler];
       [applicationActivities addObject:findInPageActivity];
     }
 
     if (data.userAgent != web::UserAgentType::NONE) {
       RequestDesktopOrMobileSiteActivity* requestActivity =
           [[RequestDesktopOrMobileSiteActivity alloc]
-              initWithDispatcher:browserCommandHandler
+              initWithDispatcher:commandHandler
                        userAgent:data.userAgent];
       [applicationActivities addObject:requestActivity];
     }
   }
   if (data.isPagePrintable) {
     PrintActivity* printActivity = [[PrintActivity alloc] init];
-    printActivity.dispatcher = browserCommandHandler;
+    printActivity.dispatcher = commandHandler;
     [applicationActivities addObject:printActivity];
   }
   return applicationActivities;