ENABLE_PLUGINS=0 static build fails with GN

Something seems to be pulling in plugin headers:

FAILED: /usr/bin/arm-linux-gnueabihf-g++ -MMD -MF obj/content/ppapi_plugin/ppapi_plugin_sources/ppapi_broker_main.o.d -DV8_DEPRECATION_WARNINGS -DENABLE_MDNS=1 -DENABLE_NOTIFICATIONS -DENABLE_PDF=1 -DENABLE_SPELLCHECK=1 -DUSE_UDEV -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_DEFAULT_RENDER_THEME=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DNO_TCMALLOC -DENABLE_WEBRTC=1 -DDISABLE_NACL -DENABLE_EXTENSIONS=1 -DENABLE_TASK_MANAGER=1 -DENABLE_THEMES=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_SUPERVISED_USERS=1 -DENABLE_SERVICE_DISCOVERY=1 -DUSE_PROPRIETARY_CODECS -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DCONTENT_IMPLEMENTATION -DV8_USE_EXTERNAL_STARTUP_DATA -DGL_GLEXT_PROTOTYPES -DUSE_GLX -DUSE_EGL -DOXIDE_BUILD -DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DSK_SUPPORT_GPU=1 -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DU_NOEXCEPT= -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DHAVE_PTHREAD -DUSE_LIBJPEG_TURBO=1 -DENABLE_LAYOUT_UNIT_IN_INLINE_BOXES=0 -DENABLE_OILPAN=1 -DWTF_USE_CONCATENATED_IMPULSE_RESPONSES=1 -DWTF_USE_ICCJPEG=1 -DWTF_USE_QCMSLIB=1 -DWTF_USE_WEBAUDIO_FFMPEG=1 -DWTF_USE_DEFAULT_RENDER_THEME=1 -I../.. -Igen -I../../third_party/khronos -I../../gpu -I../../third_party/libwebp -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/effects -I../../third_party/skia/include/images -I../../third_party/skia/include/lazy -I../../third_party/skia/include/pathops -I../../third_party/skia/include/pdf -I../../third_party/skia/include/pipe -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/skia/include/gpu -I../../third_party/skia/src/gpu -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/WebKit -Igen/third_party/WebKit -I../../v8/include -Igen -I../../v8/include -I../../third_party/protobuf/src -Igen/protoc_out -I../../third_party/protobuf/src -I/usr/include/nss -I/usr/include/nspr -I../../third_party/boringssl/src/include -I../../third_party/libjpeg_turbo -I../../third_party/iccjpeg -I../../third_party/libpng -I../../third_party/zlib -I../../third_party/ots/include -I../../third_party/qcms/src -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -funwind-tables -fPIC -pipe -pthread -march=armv7-a -mfloat-abi=hard -mthumb -mtune=generic-armv7-a -mfpu=neon -Wall -Wno-psabi -Wno-unused-local-typedefs -Wno-maybe-uninitialized -Wno-missing-field-initializers -Wno-unused-parameter -O2 -fno-ident -fdata-sections -ffunction-sections -g1 -fvisibility=hidden -fno-threadsafe-statics -fvisibility-inlines-hidden -std=gnu++11 -Wno-narrowing -fno-rtti -fno-exceptions -c ../../content/ppapi_plugin/ppapi_broker_main.cc -o obj/content/ppapi_plugin/ppapi_plugin_sources/ppapi_broker_main.o
In file included from ../../content/ppapi_plugin/ppapi_thread.h:20:0,
                 from ../../content/ppapi_plugin/ppapi_broker_main.cc:10:
../../content/public/common/pepper_plugin_info.h:20:2: error: #error "Plugins should be enabled"
 #error "Plugins should be enabled"
  ^
ninja: build stopped: subcommand failed.

This doesn't affect component builds