Expand is_linux to is_linux || is_chromeos.

BUILD.gn

@@ -19,8 +19,9 @@ if (angle_has_build) {
 
 declare_args() {
   # Use the PCI lib to collect GPU information on Linux.
-  use_libpci = is_linux && (!is_chromecast || is_cast_desktop_build) &&
-               (angle_use_x11 || use_ozone) && angle_has_build
+  use_libpci =
+      (is_linux || is_chromeos) && (!is_chromecast || is_cast_desktop_build) &&
+      (angle_use_x11 || use_ozone) && angle_has_build
 
   # Link in system libGL, to work with apitrace.  See doc/DebuggingTips.md.
   angle_link_glx = false
@@ -100,7 +101,7 @@ config("internal_config") {
 
   if (is_win) {
     defines += [ "ANGLE_IS_WIN" ]
-  } else if (is_linux) {
+  } else if (is_linux || is_chromeos) {
     defines += [ "ANGLE_IS_LINUX" ]
   }
 
@@ -272,7 +273,7 @@ config("angle_no_cfi_unrelated_cast") {
 
 angle_source_set("angle_system_utils") {
   sources = angle_system_utils_sources
-  if (is_linux) {
+  if (is_linux || is_chromeos) {
     libs = [ "dl" ]
   }
 }
@@ -384,7 +385,7 @@ angle_static_library("angle_gpu_info_util") {
     libs += [ "dxgi.lib" ]
   }
 
-  if (is_linux) {
+  if (is_linux || is_chromeos) {
     sources += libangle_gpu_info_util_linux_sources
 
     if (angle_use_x11 && angle_has_build) {
@@ -728,7 +729,7 @@ angle_source_set("libANGLE_base") {
       sources += libangle_gl_egl_dl_sources
       sources += libangle_gl_egl_android_sources
     }
-    if (is_linux) {
+    if (is_linux || is_chromeos) {
       sources += libangle_gl_egl_sources
       sources += libangle_gl_egl_dl_sources
     }

gni/angle.gni

@@ -33,7 +33,7 @@ if (angle_has_build) {
     is_asan = false
     build_with_chromium = false
     dcheck_always_on = false
-    angle_use_x11 = is_linux && !is_ggp
+    angle_use_x11 = (is_linux || is_chromeos) && !is_ggp
     use_ozone = false
     use_fuzzing_engine = false
   }
@@ -99,9 +99,9 @@ declare_args() {
 
   angle_enable_d3d9 = is_win && !angle_is_winuwp
   angle_enable_d3d11 = is_win
-  angle_enable_gl =
-      (ozone_platform_gbm || !is_linux || (angle_use_x11 && !is_chromeos)) &&
-      !is_fuchsia && !angle_is_winuwp && !is_ggp && !is_win_arm64
+  angle_enable_gl = (ozone_platform_gbm || (!is_linux && !is_chromeos) ||
+                     (angle_use_x11 && !is_chromeos)) && !is_fuchsia &&
+                    !angle_is_winuwp && !is_ggp && !is_win_arm64
 
   # ANGLE Vulkan backend on Android requires API level 26, i.e. Oreo, due to
   # Vulkan Validation Layers compatibility issues, see http://crrev/c/1405714.
@@ -157,8 +157,8 @@ angle_remove_configs = []
 if (angle_has_build) {
   angle_remove_configs += [ "//build/config/compiler:default_include_dirs" ]
 }
-angle_better_stack_traces =
-    (is_debug || dcheck_always_on) && is_linux && !is_asan && !is_cfi
+angle_better_stack_traces = (is_debug || dcheck_always_on) &&
+                            (is_linux || is_chromeos) && !is_asan && !is_cfi
 
 if (angle_has_build && is_clang) {
   angle_remove_configs += [ "//build/config/clang:find_bad_constructs" ]
@@ -360,7 +360,7 @@ template("angle_test") {
         configs -= [ "//build/config/android:hide_all_but_jni" ]
       }
 
-      if (is_linux && !is_component_build) {
+      if ((is_linux || is_chromeos) && !is_component_build) {
         # Set rpath to find shared libs in a non-component build.
         configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
       }
@@ -391,7 +391,7 @@ template("angle_test") {
              "//testing/xvfb.py",
            ]
 
-    if (is_linux && !is_component_build) {
+    if ((is_linux || is_chromeos) && !is_component_build) {
       # Set rpath to find shared libs in a non-component build.
       configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
     }

src/libGLESv2.gni

@@ -74,7 +74,7 @@ angle_system_utils_sources = [
   "src/common/system_utils.h",
 ]
 
-if (is_linux || is_android || is_fuchsia) {
+if (is_linux || is_chromeos || is_android || is_fuchsia) {
   angle_system_utils_sources += [
     "src/common/system_utils_linux.cpp",
     "src/common/system_utils_posix.cpp",

src/tests/BUILD.gn

@@ -134,7 +134,7 @@ angle_test("angle_unittests") {
   }
 }
 
-if (is_win || is_linux || is_mac || is_android || is_fuchsia) {
+if (is_win || is_linux || is_chromeos || is_mac || is_android || is_fuchsia) {
   import("angle_end2end_tests.gni")
 
   angle_test("angle_end2end_tests") {
@@ -191,7 +191,7 @@ if (is_win || is_linux || is_mac || is_android || is_fuchsia) {
   }
 }
 
-if (is_win || is_linux || is_mac || is_android) {
+if (is_win || is_linux || is_chromeos || is_mac || is_android) {
   import("angle_white_box_tests.gni")
 
   angle_test("angle_white_box_tests") {
@@ -255,7 +255,7 @@ angle_perftests_common("angle_perftests_static") {
   test_utils = ":angle_common_test_utils_static"
 }
 
-if (is_win || is_linux || is_android || is_mac) {
+if (is_win || is_linux || is_chromeos || is_android || is_mac) {
   import("angle_perftests.gni")
 
   # This test suite is for perf tests that use ANGLE's internals in some direct way.
@@ -283,7 +283,7 @@ if (is_win || is_linux || is_android || is_mac) {
   }
 }
 
-if (is_win || is_linux || is_android || is_mac || is_fuchsia) {
+if (is_win || is_linux || is_chromeos || is_android || is_mac || is_fuchsia) {
   import("angle_perftests.gni")
 
   if (build_angle_trace_perf_tests) {
@@ -393,13 +393,13 @@ if (is_win || is_linux || is_android || is_mac || is_fuchsia) {
       data_deps += [ "//testing:run_perf_test" ]
     }
 
-    if (is_win || is_linux) {
+    if (is_win || is_linux || is_chromeos) {
       data_deps += [ "${angle_root}/third_party/glmark2:glmark2_angle" ]
     }
     if (is_win && target_cpu != "arm64") {
       data_deps += [ "${angle_root}/third_party/glmark2:glmark2_wgl" ]
     }
-    if (is_linux) {
+    if (is_linux || is_chromeos) {
       data_deps += [ "${angle_root}/third_party/glmark2:glmark2_glx" ]
     }
 
@@ -819,7 +819,7 @@ if (build_angle_gles1_conform_tests) {
 
     sources += angle_gles1_conform_common_source
 
-    if (!is_win && !is_linux) {
+    if (!is_win && !is_linux && !is_chromeos) {
       defines = [ "NULLWS" ]
     }
   }
@@ -833,7 +833,7 @@ if (build_angle_gles1_conform_tests) {
 
     if (is_win) {
       sources += [ "$gles1_conform_root/conform/covegl/native_w32.c" ]
-    } else if (is_linux) {
+    } else if (is_linux || is_chromeos) {
       sources += [ "$gles1_conform_root/conform/covegl/native.c" ]
     } else {
       sources += [ "$gles1_conform_root/conform/covegl/native_nws.c" ]
@@ -936,7 +936,7 @@ if (build_angle_deqp_tests && !is_fuchsia) {
     # Ask the system headers to expose all the regular function otherwise
     # dEQP doesn't compile and produces warnings about implicitly defined
     # functions.
-    if (is_linux) {
+    if (is_linux || is_chromeos) {
       # This has to be GNU_SOURCE as on Linux dEQP uses syscall()
       defines += [ "_GNU_SOURCE" ]
     }
@@ -1071,7 +1071,7 @@ if (build_angle_deqp_tests && !is_fuchsia) {
     if (is_win) {
       sources += deqp_framework_delibs_sources_win
     }
-    if (is_linux || is_android || is_mac) {
+    if (is_linux || is_chromeos || is_android || is_mac) {
       sources += deqp_framework_delibs_sources_unix
     }
 

third_party/glmark2/BUILD.gn

@@ -111,7 +111,7 @@ source_set("glmark2_headers") {
     "src/src/texture.h",
   ]
 
-  if (is_linux) {
+  if (is_linux || is_chromeos) {
     sources += [ "src/src/gl-state-glx.h" ]
   }
   if (is_win) {
@@ -346,7 +346,7 @@ template("glmark2_exe") {
         "src/src/native-state-win32.h",
       ]
     }
-    if (is_linux) {
+    if (is_linux || is_chromeos) {
       defines += [ "GLMARK2_USE_X11" ]
       sources += [
         "src/src/native-state-x11.cpp",
@@ -370,13 +370,13 @@ glmark2_exe("glmark2_angle") {
     "GLMARK2_USE_EGL",
   ]
 
-  if (is_linux && !is_component_build) {
+  if ((is_linux || is_chromeos) && !is_component_build) {
     # Set rpath to find shared libs in a non-component build.
     public_configs = [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
   }
 }
 
-if (is_linux) {
+if (is_linux || is_chromeos) {
   glmark2_exe("glmark2_glx") {
     sources = [
       "src/src/gl-state-glx.cpp",

util/BUILD.gn

@@ -140,7 +140,7 @@ angle_source_set("angle_util_loader") {
 config("angle_util_config") {
   # Force users to include "util/header.h" instead of just "header.h".
   include_dirs = [ ".." ]
-  if (is_linux && angle_use_x11) {
+  if ((is_linux || is_chromeos) && angle_use_x11) {
     libs = [ "X11" ]
   }
 }
@@ -169,7 +169,7 @@ foreach(is_shared_library,
     ]
     libs = []
 
-    if (is_linux) {
+    if (is_linux || is_chromeos) {
       libs += [
         "rt",
         "dl",