Revert of Clean up V4L2 codec-related flags and defines

content/content_common.gypi

Index: content/content_common.gypi
diff --git a/content/content_common.gypi b/content/content_common.gypi
index 757868f0c5b056fea79e912322997b609baca5d2..87db9598d10d3a2cbf466a2e9ce3a06cd21cce4e 100644
--- a/content/content_common.gypi
+++ b/content/content_common.gypi
@@ -762,7 +762,7 @@
     }],
     ['use_v4lplugin==1 and chromeos==1', {
       'defines': [
-        'USE_LIBV4L2'
+        'USE_LIBV4L2',
       ],
       'variables': {
         'generate_stubs_script': '../tools/generate_stubs/generate_stubs.py',
@@ -813,40 +813,50 @@
       'defines': [
         'USE_V4L2_CODEC'
       ],
+    }],
+    ['chromeos==1 and (target_arch=="arm" or (use_ozone==1 and use_v4l2_codec==1))', {
       'dependencies': [
         '../media/media.gyp:media',
       ],
       'sources': [
-        'common/gpu/media/accelerated_video_decoder.h',
         'common/gpu/media/generic_v4l2_video_device.cc',
         'common/gpu/media/generic_v4l2_video_device.h',
-        'common/gpu/media/h264_decoder.cc',
-        'common/gpu/media/h264_decoder.h',
-        'common/gpu/media/h264_dpb.cc',
-        'common/gpu/media/h264_dpb.h',
         'common/gpu/media/v4l2_image_processor.cc',
         'common/gpu/media/v4l2_image_processor.h',
-        'common/gpu/media/v4l2_slice_video_decode_accelerator.cc',
-        'common/gpu/media/v4l2_slice_video_decode_accelerator.h',
         'common/gpu/media/v4l2_video_decode_accelerator.cc',
         'common/gpu/media/v4l2_video_decode_accelerator.h',
         'common/gpu/media/v4l2_video_device.cc',
         'common/gpu/media/v4l2_video_device.h',
         'common/gpu/media/v4l2_video_encode_accelerator.cc',
         'common/gpu/media/v4l2_video_encode_accelerator.h',
-        'common/gpu/media/vp8_decoder.cc',
-        'common/gpu/media/vp8_decoder.h',
-        'common/gpu/media/vp8_picture.cc',
-        'common/gpu/media/vp8_picture.h',
       ],
       'include_dirs': [
         '<(DEPTH)/third_party/khronos',
       ],
-    }],
-    ['target_arch == "arm" and chromeos == 1', {
-      'sources': [
-        'common/gpu/media/tegra_v4l2_video_device.cc',
-        'common/gpu/media/tegra_v4l2_video_device.h',
+      'conditions': [
+        ['target_arch == "arm"', {
+          'sources': [
+            'common/gpu/media/tegra_v4l2_video_device.cc',
+            'common/gpu/media/tegra_v4l2_video_device.h',
+          ],
+          'conditions': [
+            ['use_v4lplugin==1', {
+              'sources': [
+                'common/gpu/media/accelerated_video_decoder.h',
+                'common/gpu/media/h264_decoder.cc',
+                'common/gpu/media/h264_decoder.h',
+                'common/gpu/media/h264_dpb.cc',
+                'common/gpu/media/h264_dpb.h',
+                'common/gpu/media/v4l2_slice_video_decode_accelerator.cc',
+                'common/gpu/media/v4l2_slice_video_decode_accelerator.h',
+                'common/gpu/media/vp8_decoder.cc',
+                'common/gpu/media/vp8_decoder.h',
+                'common/gpu/media/vp8_picture.cc',
+                'common/gpu/media/vp8_picture.h',
+              ],
+            }],
+          ],
+        }],
       ],
     }],
     ['target_arch != "arm" and chromeos == 1', {