Update test code to use EncodedImage::Allocate

Bug: webrtc:9378
Change-Id: I2ea63b097b0263b264fbbcca295365781fcae621
Reviewed-on: https://webrtc-review.googlesource.com/c/122780
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26690}

call/rtp_video_sender_unittest.cc

diff --git a/call/rtp_video_sender_unittest.cc b/call/rtp_video_sender_unittest.cc
index ede5b1d..4d1964e 100644
--- a/call/rtp_video_sender_unittest.cc
+++ b/call/rtp_video_sender_unittest.cc
@@ -133,12 +133,13 @@
 }  // namespace
 
 TEST(RtpVideoSenderTest, SendOnOneModule) {
-  uint8_t payload = 'a';
+  constexpr uint8_t kPayload = 'a';
   EncodedImage encoded_image;
   encoded_image.SetTimestamp(1);
   encoded_image.capture_time_ms_ = 2;
   encoded_image._frameType = kVideoFrameKey;
-  encoded_image.set_buffer(&payload, 1);
+  encoded_image.Allocate(1);
+  encoded_image.data()[0] = kPayload;
   encoded_image.set_size(1);
 
   RtpVideoSenderTestFixture test({kSsrc1}, kPayloadType, {});
@@ -163,12 +164,13 @@
 }
 
 TEST(RtpVideoSenderTest, SendSimulcastSetActive) {
-  uint8_t payload = 'a';
+  constexpr uint8_t kPayload = 'a';
   EncodedImage encoded_image_1;
   encoded_image_1.SetTimestamp(1);
   encoded_image_1.capture_time_ms_ = 2;
   encoded_image_1._frameType = kVideoFrameKey;
-  encoded_image_1.set_buffer(&payload, 1);
+  encoded_image_1.Allocate(1);
+  encoded_image_1.data()[0] = kPayload;
   encoded_image_1.set_size(1);
 
   RtpVideoSenderTestFixture test({kSsrc1, kSsrc2}, kPayloadType, {});
@@ -207,12 +209,13 @@
 // that outgoing data can be sent on this module, and checks that no data can
 // be sent if both modules are inactive.
 TEST(RtpVideoSenderTest, SendSimulcastSetActiveModules) {
-  uint8_t payload = 'a';
+  constexpr uint8_t kPayload = 'a';
   EncodedImage encoded_image_1;
   encoded_image_1.SetTimestamp(1);
   encoded_image_1.capture_time_ms_ = 2;
   encoded_image_1._frameType = kVideoFrameKey;
-  encoded_image_1.set_buffer(&payload, 1);
+  encoded_image_1.Allocate(1);
+  encoded_image_1.data()[0] = kPayload;
   encoded_image_1.set_size(1);
 
   EncodedImage encoded_image_2(encoded_image_1);
@@ -296,12 +299,13 @@
 
   RtpVideoSenderTestFixture test({kSsrc1}, kPayloadType, {}, &callback);
 
-  uint8_t payload = 'a';
+  constexpr uint8_t kPayload = 'a';
   EncodedImage encoded_image;
   encoded_image.SetTimestamp(1);
   encoded_image.capture_time_ms_ = 2;
   encoded_image._frameType = kVideoFrameKey;
-  encoded_image.set_buffer(&payload, 1);
+  encoded_image.Allocate(1);
+  encoded_image.data()[0] = kPayload;
   encoded_image.set_size(1);
 
   encoded_image._frameType = kVideoFrameKey;