Fix use-after-move in //c/services/media_gallery_util/

Fix use-after-move (potential) bugs found by the
"bugprone-use-after-move" clang-tidy check.

Bug: 1122844
Change-Id: I81b1f6a8fb76d2ca7120a12e7fab1a66156aef11
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2561391
Commit-Queue: Tommy Li <tommycli@chromium.org>
Auto-Submit: Maksim Ivanov <emaxx@chromium.org>
Reviewed-by: Tommy Li <tommycli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#831946}

chrome/services/media_gallery_util/media_parser_android.cc

@@ -42,6 +42,7 @@ void MediaParserAndroid::ExtractVideoFrame(
   // be deleted when utility process dies or |OnVideoFrameExtracted| callback
   // is called.
   auto parser = std::make_unique<VideoThumbnailParser>(std::move(data_source));
-  parser->Start(base::BindOnce(&OnVideoFrameExtracted, std::move(parser),
-                               std::move(video_frame_callback)));
+  auto* const parser_ptr = parser.get();
+  parser_ptr->Start(base::BindOnce(&OnVideoFrameExtracted, std::move(parser),
+                                   std::move(video_frame_callback)));
 }

chrome/services/media_gallery_util/video_thumbnail_parser.cc

@@ -81,7 +81,8 @@ void OnEncodedVideoFrameExtracted(
   auto thumbnail_decoder = std::make_unique<media::VideoThumbnailDecoder>(
       std::make_unique<media::VpxVideoDecoder>(), config, std::move(data));
 
-  thumbnail_decoder->Start(
+  auto* const thumbnail_decoder_ptr = thumbnail_decoder.get();
+  thumbnail_decoder_ptr->Start(
       base::BindOnce(&OnSoftwareVideoFrameDecoded, std::move(thumbnail_decoder),
                      std::move(video_frame_callback), config));
 }
@@ -90,9 +91,10 @@ void ExtractVideoFrameOnMediaThread(
     media::DataSource* data_source,
     MediaParser::ExtractVideoFrameCallback video_frame_callback) {
   auto extractor = std::make_unique<media::VideoFrameExtractor>(data_source);
-  extractor->Start(base::BindOnce(&OnEncodedVideoFrameExtracted,
-                                  std::move(extractor),
-                                  std::move(video_frame_callback)));
+  auto* const extractor_ptr = extractor.get();
+  extractor_ptr->Start(base::BindOnce(&OnEncodedVideoFrameExtracted,
+                                      std::move(extractor),
+                                      std::move(video_frame_callback)));
 }
 
 }  // namespace