Revert "media/gpu/vaapi: Fill min and max qp in VAEncMiscParameterRateControl"

This reverts commit f20690e8.

Reason for revert: This CL broke some CTS. b/146838257

Original change's description:
> media/gpu/vaapi: Fill min and max qp in VAEncMiscParameterRateControl
> 
> VAEncMiscParameterRateControl has parameters about minimum and
> maximum of quantization values. These values should be filled.
> 
> Bug: 1034382
> Test: VEA test on atlas
> Change-Id: I185b3e710c05095313aa71bc9fe90b23c8885345
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1969196
> Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
> Reviewed-by: Miguel Casas <mcasas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#726700}

TBR=mcasas@chromium.org,sprang@chromium.org,hiroh@chromium.org,sreerenj.balachandran@intel.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1034382
Change-Id: I3bd3007985adfc72f0601b8995c2bf4fd91c47f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1981961Reviewed-by: Chih-Yu Huang <akahuang@chromium.org>
Commit-Queue: Chih-Yu Huang <akahuang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727435}

media/gpu/vaapi/h264_encoder.cc

@@ -17,11 +17,7 @@ constexpr int kIDRPeriod = 2048;
 constexpr int kIPeriod = 0;
 constexpr int kIPPeriod = 1;
 
-// The qp range is 0-51 in H264. Select 26 because of the center value.
 constexpr int kDefaultQP = 26;
-// Webrtc default values, see h264_encoder_impl.cc.
-constexpr int kMinQP = 24;
-constexpr int kMaxQP = 37;
 
 // Subjectively chosen bitrate window size for rate control, in ms.
 constexpr int kCPBWindowSizeMs = 1500;
@@ -47,9 +43,7 @@ H264Encoder::EncodeParams::EncodeParams()
       framerate(0),
       cpb_window_size_ms(kCPBWindowSizeMs),
       cpb_size_bits(0),
-      initial_qp(kDefaultQP),
-      min_qp(kMinQP),
-      max_qp(kMaxQP),
+      qp(kDefaultQP),
       max_num_ref_frames(kMaxNumReferenceFrames),
       max_ref_pic_list0_size(kMaxRefIdxL0Size),
       max_ref_pic_list1_size(kMaxRefIdxL1Size) {}
@@ -382,8 +376,8 @@ void H264Encoder::UpdatePPS() {
       curr_params_.max_ref_pic_list1_size > 0
           ? curr_params_.max_ref_pic_list1_size - 1
           : curr_params_.max_ref_pic_list1_size;
-  DCHECK_LE(curr_params_.initial_qp, 51);
-  current_pps_.pic_init_qp_minus26 = curr_params_.initial_qp - 26;
+  DCHECK_LE(curr_params_.qp, 51);
+  current_pps_.pic_init_qp_minus26 = curr_params_.qp - 26;
   current_pps_.deblocking_filter_control_present_flag = true;
   current_pps_.transform_8x8_mode_flag =
       (current_sps_.profile_idc == H264SPS::kProfileIDCHigh);

media/gpu/vaapi/h264_encoder.h

@@ -54,9 +54,7 @@ class H264Encoder : public AcceleratedVideoEncoder {
     unsigned int cpb_size_bits;
 
     // Quantization parameter.
-    int initial_qp;
-    int min_qp;
-    int max_qp;
+    int qp;
 
     // Maxium Number of Reference frames.
     size_t max_num_ref_frames;

media/gpu/vaapi/vaapi_video_encode_accelerator.cc

@@ -1075,8 +1075,6 @@ bool VaapiVideoEncodeAccelerator::H264Accelerator::SubmitFrameParameters(
   rate_control_param.target_percentage = kTargetBitratePercentage;
   rate_control_param.window_size = encode_params.cpb_window_size_ms;
   rate_control_param.initial_qp = pic_param.pic_init_qp;
-  rate_control_param.min_qp = encode_params.min_qp;
-  rate_control_param.max_qp = encode_params.max_qp;
   rate_control_param.rc_flags.bits.disable_frame_skip = true;
 
   VAEncMiscParameterFrameRate framerate_param = {};
@@ -1287,8 +1285,6 @@ bool VaapiVideoEncodeAccelerator::VP8Accelerator::SubmitFrameParameters(
   rate_control_param.target_percentage = kTargetBitratePercentage;
   rate_control_param.window_size = encode_params.cpb_window_size_ms;
   rate_control_param.initial_qp = encode_params.initial_qp;
-  rate_control_param.min_qp = encode_params.min_qp;
-  rate_control_param.max_qp = encode_params.max_qp;
   rate_control_param.rc_flags.bits.disable_frame_skip = true;
 
   VAEncMiscParameterFrameRate framerate_param = {};
@@ -1425,8 +1421,6 @@ bool VaapiVideoEncodeAccelerator::VP9Accelerator::SubmitFrameParameters(
   rate_control_param.target_percentage = kTargetBitratePercentage;
   rate_control_param.window_size = encode_params.cpb_window_size_ms;
   rate_control_param.initial_qp = encode_params.initial_qp;
-  rate_control_param.min_qp = encode_params.min_qp;
-  rate_control_param.max_qp = encode_params.max_qp;
   rate_control_param.rc_flags.bits.disable_frame_skip = true;
 
   VAEncMiscParameterFrameRate framerate_param = {};