Revert of Remove NativeThemeWin::PaintIndirect (patchset #3 id:40001 of https://codereview.chromium.org/2090003003/ )
Reason for revert:
Directly causes crbug.com/628574, which is ship-blocking; we'll have to find another way to clean up the mess.
Original issue's description:
> Remove NativeThemeWin::PaintIndirect
>
> We don't seem to actually use this complicated codepath in practice.
>
> In particular:
>
> 1. // This block will only get hit with --enable-accelerated-drawing flag.
> That flag is obsolete, and its replacement also seems to no longer exist.
>
> 2. // Scrollbar components on Windows Classic theme (on all Windows versions)
> // have particularly problematic alpha values, so always draw them
> // indirectly.
> Turning on the Windows Classic theme on 64b Windows 7, I can't cause the block
> to be hit today.
>
> 3. // In addition, scrollbar thumbs and grippers for the Windows XP
> // theme (available only on Windows XP) also need their alpha values
> // fixed.
> We're no longer supporting XP and have been cleared to remove relevant code.
>
> Once it's gone, so are several copies of functions that paint the
> same UI element in different ways depending on whether they're drawing
> to HDC or SkCanvas: Gutter, MenuSeparator, MenuBackground, and
> MenuItemBackground.
>
> R=pkasting@chromium.org
> BUG=543755,579196,622692
>
> Committed: https://crrev.com/83a3c26417896b207efe22b116a03a9a162c0ca5
> Cr-Commit-Position: refs/heads/master@{#404155}
TBR=pkasting@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=543755,579196,622692
Review-Url: https://codereview.chromium.org/2181153002
Cr-Commit-Position: refs/heads/master@{#407679}
2 files changed
