video/lacros: enable DeprecateLowUsageCodecs feature in lacros

- Expose feature in chrome://flags UI for lacros-chrome
- Enable feature by default (same as in ash-chrome)

BUG=b:179415693
TEST=manual test on hatch

Change-Id: I8226f4c43f8cf34a048a31a3d6832b713ec0c228
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2733603
Reviewed-by: Andres Calderon Jaramillo <[email protected]>
Reviewed-by: Dale Curtis <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Commit-Queue: Pilar Molina Lopez <[email protected]>
Cr-Commit-Position: refs/heads/master@{#859927}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index cf1284ff..a4a41ad 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -3891,11 +3891,6 @@
     "or fully launched. Only on the few models that Bluetooth WBS is "
     "still stablizing this flag will take effect.";
 
-const char kDeprecateLowUsageCodecsName[] = "Deprecates low usage media codecs";
-const char kDeprecateLowUsageCodecsDescription[] =
-    "Deprecates low usage codecs. Disable this feature to allow playback of "
-    "AMR and GSM.";
-
 const char kPreferConstantFrameRateName[] = "Prefer Constant Frame Rate";
 const char kPreferConstantFrameRateDescription[] =
     "Enables this flag to prefer using constant frame rate for camera when "
@@ -4837,6 +4832,13 @@
 
 #endif  // BUILDFLAG(IS_CHROMEOS_ASH)
 
+#if defined(OS_CHROMEOS)
+const char kDeprecateLowUsageCodecsName[] = "Deprecates low usage media codecs";
+const char kDeprecateLowUsageCodecsDescription[] =
+    "Deprecates low usage codecs. Disable this feature to allow playback of "
+    "AMR and GSM.";
+#endif  // defined(OS_CHROMEOS)
+
 #if defined(OS_CHROMEOS) && BUILDFLAG(USE_CHROMEOS_MEDIA_ACCELERATION)
 const char kChromeOSDirectVideoDecoderName[] = "ChromeOS Direct Video Decoder";
 const char kChromeOSDirectVideoDecoderDescription[] =