Use webrtc::EncodedImageBuffer::Create instead of webrtc::EncodedImage::Allocate

Previous cl in this series:
https://chromium-review.googlesource.com/c/chromium/src/+/1836496

Bug: webrtc:9378
Change-Id: Ib44219631559dd702c10675bfc41a198e822c893
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1862449
Auto-Submit: Niels Möller <nisse@chromium.org>
Reviewed-by: Florent Castelli <orphis@chromium.org>
Commit-Queue: Niels Möller <nisse@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707314}

third_party/blink/renderer/platform/peerconnection/rtc_video_decoder_adapter_test.cc

@@ -181,9 +181,9 @@ class RTCVideoDecoderAdapterTest : public ::testing::Test {
 
   int32_t Decode(uint32_t timestamp) {
     webrtc::EncodedImage input_image;
-    input_image.Allocate(1);
-    input_image.set_size(1);
-    input_image.data()[0] = 0;
+    static const uint8_t data[1] = {0};
+    input_image.SetEncodedData(
+        webrtc::EncodedImageBuffer::Create(data, sizeof(data)));
     input_image._frameType = webrtc::VideoFrameType::kVideoFrameKey;
     input_image._completeFrame = true;
     input_image.SetTimestamp(timestamp);
@@ -214,7 +214,9 @@ class RTCVideoDecoderAdapterTest : public ::testing::Test {
 
   webrtc::EncodedImage GetEncodedImageWithColorSpace(uint32_t timestamp) {
     webrtc::EncodedImage input_image;
-    input_image.Allocate(1);
+    static const uint8_t data[1] = {0};
+    input_image.SetEncodedData(
+        webrtc::EncodedImageBuffer::Create(data, sizeof(data)));
     input_image.set_size(1);
     input_image.data()[0] = 0;
     input_image._completeFrame = true;