Add 4K+ portrait resolutions for the H264 and VP9 DXVA decoders.

H264 is most affected since VP9 gets 4K portrait support by virtue
of supporting 8K decoding. This cl also adds 8K portrait mode
support for VP9.

BUG=806568
TEST=manually verified video in bug gets GpuVideoDecoder.

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I4c622e3d3e54c43f85c6d3af0d7624f66a0639b6
Reviewed-on: https://chromium-review.googlesource.com/891670Reviewed-by: Frank Liberato <liberato@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532710}

media/gpu/dxva_video_decode_accelerator_win.cc

@@ -1388,14 +1388,14 @@ gfx::Size DXVAVideoDecodeAccelerator::GetMaxResolution(
     static const gfx::Size kCachedH264Resolution = GetMaxResolutionForGUIDs(
         kDefaultMax, {DXVA2_ModeH264_E, DXVA2_Intel_ModeH264_E},
         {gfx::Size(2560, 1440), gfx::Size(3840, 2160), gfx::Size(4096, 2160),
-         gfx::Size(4096, 2304)});
+         gfx::Size(4096, 2304), gfx::Size(2160, 3840)});
     return kCachedH264Resolution;
   }
 
   // Despite the name this is the GUID for VP8/VP9.
   static const gfx::Size kCachedVPXResolution = GetMaxResolutionForGUIDs(
       gfx::Size(4096, 2160), {D3D11_DECODER_PROFILE_VP9_VLD_PROFILE0},
-      {gfx::Size(4096, 2304), gfx::Size(7680, 4320)});
+      {gfx::Size(4096, 2304), gfx::Size(7680, 4320), gfx::Size(4320, 7680)});
   return kCachedVPXResolution;
 }