capture-mode-demo-tools: Add nudge to grab user's attention

This CL adds a new nudge to grab user's attention of the new demo
tools feature. Demo of the nudge is available at:
http://b/263188273#comment2

Fixed: b:263188273
Test: Manually
Change-Id: Ibcf617376b4f56b5286cd21b704273e46dc85ce6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4129782
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Commit-Queue: Michele Fan <michelefan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1088249}

ash/ash_strings.grd

@@ -4914,6 +4914,9 @@ Here are some things you can try to get started.
       <message name="IDS_ASH_SCREEN_CAPTURE_SHOW_CAMERA_USER_NUDGE" desc="The message shown in a toast widget to nudge the user and alert them to check out the new settings that allow them to show camera during video recording.">
         You can now record yourself and your screen at the same time
       </message>
+      <message name="IDS_ASH_SCREEN_CAPTURE_SHOW_DEMO_TOOLS_USER_NUDGE" desc="The message shown in a toast widget to nudge the user and alert them to check out the new settings that allow them to show clicks and keyboard shortcuts during video recording.">
+        You can now show clicks and keyboard shortcuts in screen recordings
+      </message>
       <message name="IDS_ASH_SCREEN_CAPTURE_SURFACE_TOO_SMALL_USER_NUDGE" desc="The message shown in a toast widget to alert the user that the current capture surface is too small to show the camera preview.">
         Region is too small to fit camera
       </message>

ash/ash_strings_grd/IDS_ASH_SCREEN_CAPTURE_SHOW_DEMO_TOOLS_USER_NUDGE.png.sha1

@@ -0,0 +1 @@
+38cde07894ba48197960e945cb73fa29f7e7ad78

ash/capture_mode/capture_mode_controller.cc

@@ -105,6 +105,13 @@ constexpr char kUsesDefaultCapturePathPrefName[] =
 // in such a way that the nudge no longer needs to be displayed again.
 constexpr char kCanShowCameraNudge[] = "ash.capture_mode.can_show_camera_nudge";
 
+// The name of a boolean pref that determines whether we can show the demo tools
+// user nudge. When this pref is false, it means that we showed the nudge at
+// some point and the user interacted with the capture mode session UI in such a
+// way that the nudge no longer needs to be displayed again.
+constexpr char kCanShowDemoToolsNudge[] =
+    "ash.capture_mode.can_show_demo_tools_nudge";
+
 // The screenshot notification button index.
 enum ScreenshotNotificationButtonIndex {
   BUTTON_EDIT = 0,
@@ -453,7 +460,10 @@ void CaptureModeController::RegisterProfilePrefs(PrefRegistrySimple* registry) {
                                  /*default_value=*/base::FilePath());
   registry->RegisterBooleanPref(kUsesDefaultCapturePathPrefName,
                                 /*default_value=*/false);
-  registry->RegisterBooleanPref(kCanShowCameraNudge, /*default_value=*/true);
+  registry->RegisterBooleanPref(features::AreCaptureModeDemoToolsEnabled()
+                                    ? kCanShowDemoToolsNudge
+                                    : kCanShowCameraNudge,
+                                /*default_value=*/true);
 }
 
 bool CaptureModeController::IsActive() const {
@@ -561,11 +571,16 @@ bool CaptureModeController::CanShowUserNudge() const {
 
   auto* pref_service = session_controller->GetActivePrefService();
   DCHECK(pref_service);
-  return pref_service->GetBoolean(kCanShowCameraNudge);
+  return pref_service->GetBoolean(features::AreCaptureModeDemoToolsEnabled()
+                                      ? kCanShowDemoToolsNudge
+                                      : kCanShowCameraNudge);
 }
 
 void CaptureModeController::DisableUserNudgeForever() {
-  GetActiveUserPrefService()->SetBoolean(kCanShowCameraNudge, false);
+  GetActiveUserPrefService()->SetBoolean(
+      features::AreCaptureModeDemoToolsEnabled() ? kCanShowDemoToolsNudge
+                                                 : kCanShowCameraNudge,
+      false);
 }
 
 void CaptureModeController::SetUsesDefaultCaptureFolder(bool value) {

ash/capture_mode/capture_mode_toast_controller.cc

@@ -8,6 +8,7 @@
 
 #include "ash/capture_mode/capture_mode_session.h"
 #include "ash/capture_mode/capture_mode_util.h"
+#include "ash/constants/ash_features.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/public/cpp/style/color_provider.h"
 #include "ash/strings/grit/ash_strings.h"
@@ -41,10 +42,14 @@ constexpr base::TimeDelta kDelayToDismissToast = base::Seconds(6);
 
 std::u16string GetCaptureToastLabelOnToastType(
     CaptureToastType capture_toast_type) {
+  const int nudge_message_id =
+      features::AreCaptureModeDemoToolsEnabled()
+          ? IDS_ASH_SCREEN_CAPTURE_SHOW_DEMO_TOOLS_USER_NUDGE
+          : IDS_ASH_SCREEN_CAPTURE_SHOW_CAMERA_USER_NUDGE;
   const int message_id =
       capture_toast_type == CaptureToastType::kCameraPreview
           ? IDS_ASH_SCREEN_CAPTURE_SURFACE_TOO_SMALL_USER_NUDGE
-          : IDS_ASH_SCREEN_CAPTURE_SHOW_CAMERA_USER_NUDGE;
+          : nudge_message_id;
   return l10n_util::GetStringUTF16(message_id);
 }