Multi reader/writer cache/buffer

media/blink/BUILD.gn

Index: media/blink/BUILD.gn
diff --git a/media/blink/BUILD.gn b/media/blink/BUILD.gn
index 8819fb71c405177f9a7d4af4d10ce96cd1885c7d..540bb2065b52847a8685f43278d672b512d8dba7 100644
--- a/media/blink/BUILD.gn
+++ b/media/blink/BUILD.gn
@@ -43,8 +43,14 @@ component("blink") {
     "cdm_session_adapter.h",
     "key_system_config_selector.cc",
     "key_system_config_selector.h",
+    "lru.h",
+    "multibuffer.cc",
+    "multibuffer.h",
+    "multibuffer_reader.cc",
+    "multibuffer_reader.h",
     "new_session_cdm_result_promise.cc",
     "new_session_cdm_result_promise.h",
+    "rangemap.h",
     "texttrack_impl.cc",
     "texttrack_impl.h",
     "video_frame_compositor.cc",
@@ -112,9 +118,12 @@ test("media_blink_unittests") {
     "buffered_resource_loader_unittest.cc",
     "cache_util_unittest.cc",
     "key_system_config_selector_unittest.cc",
+    "lru_unittest.cc",
     "mock_webframeclient.h",
     "mock_weburlloader.cc",
     "mock_weburlloader.h",
+    "multibuffer_unittest.cc",
+    "rangemap_unittest.cc",
     "run_all_unittests.cc",
     "test_response_generator.cc",
     "test_response_generator.h",