Bug 1771951: Add UI to the installer for opting out of Taskbar shortcut creation r=nalexander,flod

This includes some minor updates to the desktop and Start Menu strings from Content Design as well.

I also removed the now-useless quicklaunch option (which was only used pre-Windows 7).

Differential Revision: https://phabricator.services.mozilla.com/D148289

browser/installer/windows/nsis/installer.nsi

@@ -1461,11 +1461,7 @@ Function leaveShortcuts
   ${EndIf}
   ${MUI_INSTALLOPTIONS_READ} $AddDesktopSC "shortcuts.ini" "Field 2" "State"
   ${MUI_INSTALLOPTIONS_READ} $AddStartMenuSC "shortcuts.ini" "Field 3" "State"
-
-  ; Don't install the quick launch shortcut on Windows 7
-  ${Unless} ${AtLeastWin7}
-    ${MUI_INSTALLOPTIONS_READ} $AddQuickLaunchSC "shortcuts.ini" "Field 4" "State"
-  ${EndUnless}
+  ${MUI_INSTALLOPTIONS_READ} $AddTaskbarSC "shortcuts.ini" "Field 4" "State"
 
   ${If} $InstallType == ${INSTALLTYPE_CUSTOM}
     Call CheckExistingInstall
@@ -1913,13 +1909,7 @@ Function .onInit
   WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Top    "67"
   WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Bottom "87"
 
-  ; Setup the shortcuts.ini file for the Custom Shortcuts Page
-  ; Don't offer to install the quick launch shortcut on Windows 7
-  ${If} ${AtLeastWin7}
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Settings" NumFields "3"
-  ${Else}
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Settings" NumFields "4"
-  ${EndIf}
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Settings" NumFields "4"
 
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Type   "label"
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Text   "$(CREATE_ICONS_DESC)"
@@ -1945,16 +1935,13 @@ Function .onInit
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Bottom "50"
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" State  "1"
 
-  ; Don't offer to install the quick launch shortcut on Windows 7
-  ${Unless} ${AtLeastWin7}
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Type   "checkbox"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Text   "$(ICONS_QUICKLAUNCH)"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Left   "0"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Right  "-1"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Top    "60"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Bottom "70"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" State  "1"
-  ${EndUnless}
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Text   "$(ICONS_TASKBAR)"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Left   "0"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Top    "60"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Bottom "70"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" State  "1"
 
   ; Setup the components.ini file for the Components Page
   WriteINIStr "$PLUGINSDIR\components.ini" "Settings" NumFields "2"

browser/locales/en-US/installer/custom.properties

@@ -41,9 +41,9 @@ SUMMARY_UPGRADE_CLICK=Click Upgrade to continue.
 SURVEY_TEXT=&Tell us what you thought of $BrandShortName
 LAUNCH_TEXT=&Launch $BrandShortName now
 CREATE_ICONS_DESC=Create icons for $BrandShortName:
-ICONS_DESKTOP=On my &Desktop
-ICONS_STARTMENU=In my &Start Menu Programs folder
-ICONS_QUICKLAUNCH=In my &Quick Launch bar
+ICONS_DESKTOP=On my &desktop
+ICONS_STARTMENU=In my &Start menu Programs folder
+ICONS_TASKBAR=On my &taskbar
 WARN_MANUALLY_CLOSE_APP_INSTALL=$BrandShortName must be closed to proceed with the installation.\n\nPlease close $BrandShortName to continue.
 WARN_MANUALLY_CLOSE_APP_UNINSTALL=$BrandShortName must be closed to proceed with the uninstall.\n\nPlease close $BrandShortName to continue.
 WARN_MANUALLY_CLOSE_APP_REFRESH=$BrandShortName must be closed to proceed with the refresh.\n\nPlease close $BrandShortName to continue.