[media] Add StarboardRendererFactory

1. Add StarboardRendererFactory for MediaFactory to select StarboardRenderer when `use_starboard_media=true`.
2. Remove hard code StarboardRenderer in WebMediaPlayerImpl.

Note RendererType::kStarboard cannot be gated due to mojom files.

b/375278384

cobalt/android/apk/app/src/main/java/dev/cobalt/coat/CobaltActivity.java

@@ -81,6 +81,10 @@ public abstract class CobaltActivity extends Activity {
 
   private static final Pattern URL_PARAM_PATTERN = Pattern.compile("^[a-zA-Z0-9_=]*$");
 
+  // Media switch - media_switches::kDisableStarboardRenderer
+  private static final String DISABLE_STARBOARD_RENDERER_SWITCH = "disable-starboard-renderer";
+
+  public static final int JAVA_BRIDGE_INITIALIZATION_DELAY_MILLI_SECONDS = 100;
   // Maintain the list of JavaScript-exposed objects as a member variable
   // to prevent them from being garbage collected prematurely.
   private List<CobaltJavaScriptAndroidObject> javaScriptAndroidObjectList = new ArrayList<>();
@@ -391,9 +395,15 @@ protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     createContent(savedInstanceState);
 
-    videoSurfaceView = new VideoSurfaceView(this);
-    addContentView(
-        videoSurfaceView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
+    if (CommandLine.getInstance().hasSwitch(DISABLE_STARBOARD_RENDERER_SWITCH)) {
+      // TODO(b/326827007): Revisit renderer to support secondary videos.
+      Log.d(TAG, "Disable starboard renderer.");
+    } else {
+      Log.d(TAG, "Enable starboard renderer.");
+      videoSurfaceView = new VideoSurfaceView(this);
+      addContentView(
+          videoSurfaceView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
+    }
   }
 
   /**

components/viz/service/display/overlay_processor_android.cc

@@ -18,6 +18,7 @@
 #include "ui/gfx/geometry/rect_conversions.h"
 
 #if BUILDFLAG(USE_STARBOARD_MEDIA)
+#include "media/base/media_switches.h"
 #include "components/viz/service/display/starboard/overlay_strategy_underlay_starboard.h"
 #endif // BUILDFLAG(USE_STARBOARD_MEDIA)
 
@@ -60,7 +61,13 @@ OverlayProcessorAndroid::OverlayProcessorAndroid(
   // a dummy resource that has no relation to what the overlay contains.
   // https://crbug.com/842931 .
 #if BUILDFLAG(USE_STARBOARD_MEDIA)
-  strategies_.push_back(std::make_unique<OverlayStrategyUnderlayStarboard>(this));
+  if (media::IsStarboardRendererEnabled()) {
+    strategies_.push_back(
+        std::make_unique<OverlayStrategyUnderlayStarboard>(this));
+  } else {
+    strategies_.push_back(std::make_unique<OverlayStrategyUnderlay>(
+        this, OverlayStrategyUnderlay::OpaqueMode::AllowTransparentCandidates));
+  }
 #else   // BUILDFLAG(USE_STARBOARD_MEDIA)
   strategies_.push_back(std::make_unique<OverlayStrategyUnderlay>(
       this, OverlayStrategyUnderlay::OpaqueMode::AllowTransparentCandidates));

content/renderer/media/media_factory.cc

@@ -761,13 +761,20 @@ MediaFactory::CreateRendererFactorySelector(
     is_base_renderer_factory_set = true;
 #if BUILDFLAG(USE_STARBOARD_MEDIA)
     // TODO(b/326827007): Revisit renderer to support secondary videos.
-    factory_selector->AddFactory(
-        RendererType::kStarboard,
-        std::make_unique<media::StarboardRendererFactory>(
+    if (media::IsStarboardRendererEnabled()) {
+      factory_selector->AddFactory(
+          RendererType::kStarboard,
+          std::make_unique<media::StarboardRendererFactory>(
             media_log,
             // TODO: b/383327725 - Cobalt: Inject these values from the web app.
             kWriteDurationLocal, kWriteDurationRemote));
-    factory_selector->SetBaseRendererType(RendererType::kStarboard);
+      factory_selector->SetBaseRendererType(RendererType::kStarboard);
+    } else {
+      auto renderer_impl_factory = CreateRendererImplFactory(
+          player_id, media_log, decoder_factory, render_thread, render_frame_);
+      factory_selector->AddBaseFactory(RendererType::kRendererImpl,
+                                      std::move(renderer_impl_factory));
+    }
 #else // BUILDFLAG(USE_STARBOARD_MEDIA)
     auto renderer_impl_factory = CreateRendererImplFactory(
         player_id, media_log, decoder_factory, render_thread, render_frame_);

content/renderer/media/media_permission_dispatcher.cc

@@ -11,6 +11,10 @@
 #include "third_party/blink/public/web/web_local_frame.h"
 #include "url/gurl.h"
 
+#if BUILDFLAG(USE_STARBOARD_MEDIA)
+#include "media/base/media_switches.h"
+#endif // BUILDFLAG(USE_STARBOARD_MEDIA)
+
 namespace {
 
 using Type = media::MediaPermission::Type;
@@ -150,7 +154,8 @@ void MediaPermissionDispatcher::OnPermissionStatus(
   requests_.erase(iter);
 
 #if BUILDFLAG(USE_STARBOARD_MEDIA)
-  std::move(permission_status_cb).Run(true);
+  // DRM is only supported using StarboardRenderer.
+  std::move(permission_status_cb).Run(media::IsStarboardRendererEnabled());
 #else // BUILDFLAG(USE_STARBOARD_MEDIA)
   std::move(permission_status_cb)
       .Run(status == blink::mojom::PermissionStatus::GRANTED);

media/base/media_switches.cc

@@ -240,6 +240,11 @@ MEDIA_EXPORT extern const char kLacrosUseChromeosProtectedAv1[] =
     "lacros-use-chromeos-protected-av1";
 #endif  // BUILDFLAG(IS_CHROMEOS)
 
+#if BUILDFLAG(USE_STARBOARD_MEDIA)
+// Force media player using default Renderer instead of StarboardRenderer.
+const char kDisableStarboardRenderer[] = "disable-starboard-renderer";
+#endif // BUILDFLAG(USE_STARBOARD_MEDIA)
+
 namespace autoplay {
 
 // Autoplay policy that requires a document user activation.
@@ -1557,4 +1562,14 @@ uint32_t GetPassthroughAudioFormats() {
 #endif  // BUILDFLAG(ENABLE_PASSTHROUGH_AUDIO_CODECS)
 }
 
+#if BUILDFLAG(USE_STARBOARD_MEDIA)
+bool IsStarboardRendererEnabled() {
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableStarboardRenderer)) {
+    return false;
+  }
+  return true;
+} 
+#endif // BUILDFLAG(USE_STARBOARD_MEDIA)
+
 }  // namespace media

media/base/media_switches.h

@@ -99,6 +99,10 @@ MEDIA_EXPORT extern const char kLacrosUseChromeosProtectedMedia[];
 MEDIA_EXPORT extern const char kLacrosUseChromeosProtectedAv1[];
 #endif  // BUILDFLAG(IS_CHROMEOS)
 
+#if BUILDFLAG(USE_STARBOARD_MEDIA)
+MEDIA_EXPORT extern const char kDisableStarboardRenderer[];
+#endif // BUILDFLAG(USE_STARBOARD_MEDIA)
+
 namespace autoplay {
 
 MEDIA_EXPORT extern const char kDocumentUserActivationRequiredPolicy[];
@@ -449,6 +453,10 @@ MEDIA_EXPORT bool IsMediaFoundationD3D11VideoCaptureEnabled();
 MEDIA_EXPORT bool IsOutOfProcessVideoDecodingEnabled();
 #endif  // BUILDFLAG(ALLOW_OOP_VIDEO_DECODER)
 
+#if BUILDFLAG(USE_STARBOARD_MEDIA)
+MEDIA_EXPORT bool IsStarboardRendererEnabled();
+#endif // BUILDFLAG(USE_STARBOARD_MEDIA)
+
 enum class kCrosGlobalMediaControlsPinOptions {
   kPin,
   kNotPin,