Remove kIgnoreResolutionLimitsForAcceleratedVideoDecode flag

content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc

Index: content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc b/content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc
index cff95f385a9ce7cf2d646c45ff8d1c5b2ee63b03..9a05c0941a287b46022e328bbed502925cfbd533 100644
--- a/content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc
+++ b/content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc
@@ -576,8 +576,9 @@ bool V4L2SliceVideoDecodeAccelerator::SetupFormats() {
   }
 
   size_t input_size;
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kIgnoreResolutionLimitsForAcceleratedVideoDecode))
+  gfx::Size max_resolution = V4L2Device::GetSupportedMaxResolution(
+      device_, input_format_fourcc);
+  if (max_resolution.width() >= 4096 && max_resolution.height() >= 2160)
     input_size = kInputBufferMaxSizeFor4k;
   else
     input_size = kInputBufferMaxSizeFor1080p;
@@ -2508,18 +2509,18 @@ V4L2SliceVideoDecodeAccelerator::GetSupportedProfiles() {
 
   SupportedProfile profile;
   profile.min_resolution.SetSize(16, 16);
-  // NOTE: additional autodetection logic may require updating input buffer size
-  // selection.
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kIgnoreResolutionLimitsForAcceleratedVideoDecode))
-    profile.max_resolution.SetSize(4096, 2160);
-  else
-    profile.max_resolution.SetSize(1920, 1088);
-
   v4l2_fmtdesc fmtdesc;
   memset(&fmtdesc, 0, sizeof(fmtdesc));
   fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
   for (; device->Ioctl(VIDIOC_ENUM_FMT, &fmtdesc) == 0; ++fmtdesc.index) {
+    // Get maximum resolution for each format
+    profile.max_resolution = V4L2Device::GetSupportedMaxResolution(
+        device, fmtdesc.pixelformat);
+    if (profile.max_resolution.IsEmpty()) {
+      LOG(ERROR) << "GetSupportedMaxResolution failed for format "
+                 << std::hex << fmtdesc.pixelformat;
+      profile.max_resolution.SetSize(1920, 1088);
+    }
     switch (fmtdesc.pixelformat) {
       case V4L2_PIX_FMT_H264_SLICE:
         for (uint32 media_profile = media::H264PROFILE_MIN;