История изменений

g++ '-D_FILE_OFFSET_BITS=64' '-DCHROMIUM_BUILD' '-DUSE_NSS=1' '-DENABLE_ONE_CLICK_SIGNIN' '-DGTK_DISABLE_SINGLE_INCLUDES=1' '-DENABLE_REMOTING=1' '-DENABLE_WEBRTC=1' '-DENABLE_P2P_APIS=1' '-DENABLE_CONFIGURATION_POLICY' '-DENABLE_INPUT_SPEECH' '-DENABLE_NOTIFICATIONS' '-DENABLE_GPU=1' '-DENABLE_EGLIMAGE=1' '-DUSE_SKIA=1' '-DENABLE_REGISTER_PROTOCOL_HANDLER=1' '-DENABLE_TASK_MANAGER=1' '-DENABLE_WEB_INTENTS=1' '-DENABLE_EXTENSIONS=1' '-DENABLE_PLUGIN_INSTALLATION=1' '-DENABLE_PROTECTOR_SERVICE=1' '-DENABLE_SESSION_SERVICE=1' '-DENABLE_THEMES=1' '-DENABLE_BACKGROUND=1' '-DENABLE_PROMO_RESOURCE_SERVICE=1' '-DENABLE_AUTOMATION=1' '-DUI_IMPLEMENTATION' '-DSK_BUILD_NO_IMAGE_ENCODE' '-DGR_GL_CUSTOM_SETUP_HEADER=«GrGLConfig_chrome.h»' '-DGR_AGGRESSIVE_SHADER_OPTS=1' '-DU_USING_ICU_NAMESPACE=0' '-DU_STATIC_IMPLEMENTATION' '-DCHROME_PNG_WRITE_SUPPORT' '-DPNG_USER_CONFIG' '-DUSE_SYSTEM_ZLIB' '-D__STDC_FORMAT_MACROS' '-DNDEBUG' '-DNVALGRIND' '-DDYNAMIC_ANNOTATIONS_ENABLED=0' -Ithird_party/icu/public/common -Ithird_party/icu/public/i18n -I. -Iskia/config -Ithird_party/skia/include/config -Ithird_party/skia/include/core -Ithird_party/skia/include/effects -Ithird_party/skia/include/pdf -Ithird_party/skia/include/gpu -Ithird_party/skia/include/gpu/gl -Ithird_party/skia/include/ports -Ithird_party/skia/include/utils -Iskia/ext -Ithird_party/libpng -Iout/Release/obj/gen/ui/app_locale_settings -Iout/Release/obj/gen/ui/ui_strings -Iout/Release/obj/gen/ui/gfx -Ithird_party/libjpeg_turbo -pthread -fno-exceptions -fno-strict-aliasing -Wall -Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe -fPIC -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -D_REENTRANT -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/directfb -I/usr/include/libpng12 -D_REENTRANT -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/directfb -I/usr/include/libpng12 -O2 -fno-ident -fdata-sections -ffunction-sections -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden -Wsign-compare -MMD -MF out/Release/.deps/out/Release/obj.target/ui/ui/base/x/root_window_property_watcher_x.o.d.raw -c -o out/Release/obj.target/ui/ui/base/x/root_window_property_watcher_x.o ui/base/x/root_window_property_watcher_x.cc

Опа!
А USE-флага действительно нет

g++ '-D_FILE_OFFSET_BITS=64' '-DCHROMIUM_BUILD' '-DUSE_NSS=1' '-DENABLE_ONE_CLICK_SIGNIN' '-DGTK_DISABLE_SINGLE_INCLUDES=1' '-DENABLE_REMOTING=1' '-DENABLE_WEBRTC=1' '-DENABLE_P2P_APIS=1' '-DENABLE_CONFIGURATION_POLICY' '-DENABLE_INPUT_SPEECH' '-DENABLE_NOTIFICATIONS' '-DENABLE_GPU=1' '-DENABLE_EGLIMAGE=1' '-DUSE_SKIA=1' '-DENABLE_REGISTER_PROTOCOL_HANDLER=1' '-DENABLE_TASK_MANAGER=1' '-DENABLE_WEB_INTENTS=1' '-DENABLE_EXTENSIONS=1' '-DENABLE_PLUGIN_INSTALLATION=1' '-DENABLE_PROTECTOR_SERVICE=1' '-DENABLE_SESSION_SERVICE=1' '-DENABLE_THEMES=1' '-DENABLE_BACKGROUND=1' '-DENABLE_PROMO_RESOURCE_SERVICE=1' '-DENABLE_AUTOMATION=1' '-DUI_IMPLEMENTATION' '-DSK_BUILD_NO_IMAGE_ENCODE' '-DGR_GL_CUSTOM_SETUP_HEADER=«GrGLConfig_chrome.h»' '-DGR_AGGRESSIVE_SHADER_OPTS=1' '-DU_USING_ICU_NAMESPACE=0' '-DU_STATIC_IMPLEMENTATION' '-DCHROME_PNG_WRITE_SUPPORT' '-DPNG_USER_CONFIG' '-DUSE_SYSTEM_ZLIB' '-D__STDC_FORMAT_MACROS' '-DNDEBUG' '-DNVALGRIND' '-DDYNAMIC_ANNOTATIONS_ENABLED=0' -Ithird_party/icu/public/common -Ithird_party/icu/public/i18n -I. -Iskia/config -Ithird_party/skia/include/config -Ithird_party/skia/include/core -Ithird_party/skia/include/effects -Ithird_party/skia/include/pdf -Ithird_party/skia/include/gpu -Ithird_party/skia/include/gpu/gl -Ithird_party/skia/include/ports -Ithird_party/skia/include/utils -Iskia/ext -Ithird_party/libpng -Iout/Release/obj/gen/ui/app_locale_settings -Iout/Release/obj/gen/ui/ui_strings -Iout/Release/obj/gen/ui/gfx -Ithird_party/libjpeg_turbo -pthread -fno-exceptions -fno-strict-aliasing -Wall -Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe -fPIC -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -D_REENTRANT -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/directfb -I/usr/include/libpng12 -D_REENTRANT -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/directfb -I/usr/include/libpng12 -O2 -fno-ident -fdata-sections -ffunction-sections -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden -Wsign-compare -MMD -MF out/Release/.deps/out/Release/obj.target/ui/ui/base/x/root_window_property_watcher_x.o.d.raw -c -o out/Release/obj.target/ui/ui/base/x/root_window_property_watcher_x.o ui/base/x/root_window_property_watcher_x.cc

Опа! А USE-флага действительно нет