Remove unnecessary code in /widget.

- Remove numerous blocklist entries that no longer apply.
- Remove CanComputeVirtualKeyCodeFromScanCode(), because it's always true.
- Remove ShowXP{Folder,File}Picker(), since we have native pickers on supported Windows versions.
- Remove the config.trim_on_minimize preference, which is pointless on NT6+ and will just cause problems if used.

Tag #22.

1 files changed, 2 insertions, 5 deletions

diff --git a/widget/windows/WinMouseScrollHandler.cpp b/widget/windows/WinMouseScrollHandler.cpp
index 10937ba51..e157b1be2 100644
--- a/widget/windows/WinMouseScrollHandler.cpp
+++ b/widget/windows/WinMouseScrollHandler.cpp
@@ -992,10 +992,7 @@ MouseScrollHandler::SystemSettings::InitScrollChars()
                                      &mScrollChars, 0)) {
     MOZ_LOG(gMouseScrollLog, LogLevel::Info,
       ("MouseScroll::SystemSettings::InitScrollChars(): ::SystemParametersInfo("
-       "SPI_GETWHEELSCROLLCHARS) failed, %s",
-       IsVistaOrLater() ?
-         "this is unexpected on Vista or later" :
-         "but on XP or earlier, this is not a problem"));
+       "SPI_GETWHEELSCROLLCHARS) failed, this is unexpected on Vista or later"));
     // XXX Should we use DefaultScrollChars()?
     mScrollChars = 1;
   }
@@ -1081,7 +1078,7 @@ bool
 MouseScrollHandler::SystemSettings::IsOverridingSystemScrollSpeedAllowed()
 {
   return mScrollLines == DefaultScrollLines() &&
-         (!IsVistaOrLater() || mScrollChars == DefaultScrollChars());
+         mScrollChars == DefaultScrollChars();
 }
 
 /******************************************************************************