NOTES.txt

# FOR MY USE ONLY
cros-317118

# Set amd64-frick as board in eclass
chromiumos/src/third_party/chromiumos-overlay/eclass/cros-board.eclass

# REMEMBER TO SET ALEX NAME IN /etc/lsb-release!
# REMEMBER TO COPY chromeos-base/chromeos-chrome FILES!

# "is_official_build=true" > chromeos-base/chrome-icu
# API_KEYS > chromeos-base/chromeos-chrome

# make.defaults.sdk : //chromiumos/src/third_party/chromiumos-overlay/profiles/targets/sdk/make.defaults

# KERNEL CONFIG

/home/alex/chromiumos/src/third_party/kernel/v6.6/chromeos/config/chromeos/x86_64
chromeos-x86_64-reven.flavour.config

CONFIG_LOCK_DOWN_KERNEL_FORCE_INTEGRITY=n
CONFIG_LSM="landlock,yama,loadpin,safesetid,integrity,chromiumos,selinux"
CONFIG_SECURITY_LOCKDOWN_LSM=n
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY=n
CONFIG_SENSORS_IT87=m

# COMPILER OPTIMIZATIONS
-O3 -pipe -mavx -maes
-Wl,-O3 -Wl,--lto-O3
-Copt-level=3 -Ctarget-feature=+sse3,+sse4,+aes,+avx
mmx mmxext sse sse2 sse3 ssse3 sse4_1 sse4_2 aes avx

# FILES TO MODIFY FOR COMPILER OPTIMIZATIONS
third_party/portage-stable/profiles/arch/amd64/make.defaults
chromiumos-overlay/profiles/arch/amd64/make.defaults
chromiumos-overlay/profiles/default/linux/make.defaults
chromiumos-overlay/profiles/targets/chromeos/make.defaults
chromiumos-overlay/profiles/targets/sdk/make.defaults
chromiumos-overlay/chromeos/config/make.conf.common
chromiumos-overlay/chromeos/config/make.conf.generic-target

# CHROMEOS-CHROME EBUILD MODIFICATIONS
widevine
-Official

libassistant

/home/alex/chromium/src/ash/webui/ demo app, help app, and sample app

chrome_targets+=( app_shell ) > chrome_targets+=( app_shell chrome content_shell)

		"is_official_build=true"
		"thin_lto_enable_cache=true"
		"enable_stripping=true"
		"dcheck_always_on=false"
		"exclude_unwind_tables=true"
		"enable_iterator_debugging=false"
		"disable_fieldtrial_testing_config=true"
		"enable_resource_allowlist_generation=false"
		"enable_profiling=false"
		"is_component_build=false"
		"symbol_level=0"
		"enable_nacl=true"
		"optimize_webui=true"
		"enable_webui_tab_strip=true"
		"treat_warnings_as_errors=false"
		"use_lld=true"
		"v8_symbol_level=0"
		"v8_enable_fast_torque=true"
		"blink_symbol_level=0"
		"enable_precompiled_headers=false"
		"media_use_ffmpeg=true"
		"media_use_libvpx=true"
		"enable_hls_demuxer=true"
		"enable_ink=false"
		"enable_discovery=true"
		"enable_cros_media_app=false"
		"enable_ffmpeg_video_decoders=true"
		"is_component_ffmpeg=false"
		"use_webaudio_ffmpeg=false"
		"use_webaudio_pffft=true"
		"use_vaapi=true"
		"enable_widevine=$(usetf widevine)"
		"bundle_widevine_cdm=true"
		"ignore_missing_widevine_signing_cert=true"
		"enable_media_drm_storage=true"
		"enable_hangout_services_extension=true"
		"rtc_use_h264=true"
		"rtc_include_ilbc=true"
		"rtc_build_examples=false"
		"rtc_use_pipewire=false"
		"enable_vr=true"
		"enable_platform_hevc=true"
		"enable_hevc_parser_and_hw_decoder=true"
		"platform_has_optional_hevc_support=true"
		"enable_platform_ac3_eac3_audio=true"
		"enable_platform_ac4_audio=false"
		"enable_platform_dolby_vision=true"
		"enable_platform_encrypted_dolby_vision=true"
		"enable_platform_mpeg_h_audio=true"
		"enable_platform_dts_audio=true"
		"enable_mse_mpeg2ts_stream_parser=true"
		"use_text_section_splitting=true"
		"use_thin_lto=true"
		"thin_lto_enable_optimizations=true"
		"init_stack_vars_zero=true"

# WIDEVINE PATCH

under if [[ -f "${GAPI_CONFIG_FILE}" ]]; then
			add_api_keys "${GAPI_CONFIG_FILE}"
		fi
	fi

	if [[ "${CHROME_ORIGIN}" == "LOCAL_SOURCE" ]]; then
    use widevine && patch_widevine
	fi


under "google_default_client_secret=${client_secret}"
	)
}

patch_widevine() {
  info "patching for widevine..."
  local target_dir="${CHROME_ROOT}/src/third_party/widevine/cdm/chromeos/x64"
  local bin_file="${target_dir}/libwidevinecdm.so"
  if [ ! -f ${bin_file} ]; then
    mkdir -p $target_dir || true
    cp ${FILESDIR}/widevine/widevine_cdm_version.h $target_dir || die "Could not copy file to $target_dir"
    cp ${FILESDIR}/widevine/manifest.json $target_dir || die "Could not copy file to $target_dir"
    cp ${FILESDIR}/widevine/libwidevinecdm.so $target_dir || die "Could not copy file to $bin_file"
  fi
}


--- a/third_party/widevine/cdm/widevine.gni
+++ b/third_party/widevine/cdm/widevine.gni
@@ -12,7 +12,9 @@ declare_args() {
   # on Android and Fuchsia platforms.
   # Can be optionally enabled in Chromium on non-Android platforms. Please see
   # //src/third_party/widevine/LICENSE file for details.
-  enable_widevine = (is_chrome_branded && !is_fuchsia) || is_android
+  enable_widevine = true
 
 # Disable Widevine when running linux-chromeos.
@@ -53,7 +55,7 @@ assert(!enable_media_foundation_widevine_cdm || is_win)
 
 declare_args() {
   # Widevine CDM is bundled as part of Google Chrome builds.
-  bundle_widevine_cdm = enable_library_widevine_cdm && is_chrome_branded
+  bundle_widevine_cdm = true
 }