Do not attempt to compile angle_end2end_tests or angle_perftests on Android

src/tests/BUILD.gn

@@ -40,7 +40,8 @@ test("angle_unittests") {
   ]
 }
 
-end2end_gypi = exec_script("//build/gypi_to_gn.py",
+if (is_win || is_linux || is_mac) {
+  end2end_gypi = exec_script("//build/gypi_to_gn.py",
                              [
                                rebase_path("angle_end2end_tests.gypi"),
                                "--replace=<(angle_path)=.",
@@ -48,7 +49,7 @@ end2end_gypi = exec_script("//build/gypi_to_gn.py",
                              "scope",
                              [ "angle_end2end_tests.gypi" ])
 
-test("angle_end2end_tests") {
+  test("angle_end2end_tests") {
     include_dirs = [
       "testing/gtest/include",
       "../../src/tests",
@@ -81,9 +82,11 @@ test("angle_end2end_tests") {
       "//third_party/angle:preprocessor",
       "//third_party/angle:translator_static",
     ]
+  }
 }
 
-perftests_gypi = exec_script("//build/gypi_to_gn.py",
+if (is_win) {
+  perftests_gypi = exec_script("//build/gypi_to_gn.py",
                                [
                                  rebase_path("angle_perftests.gypi"),
                                  "--replace=<(angle_path)=.",
@@ -91,7 +94,7 @@ perftests_gypi = exec_script("//build/gypi_to_gn.py",
                                "scope",
                                [ "angle_perftests.gypi" ])
 
-test("angle_perftests") {
+  test("angle_perftests") {
     include_dirs = [
       "testing/gtest/include",
       "../../src/tests",
@@ -100,10 +103,8 @@ test("angle_perftests") {
 
     sources = rebase_path(perftests_gypi.angle_perf_tests_sources, ".", "../..")
 
-  if (is_win) {
     sources +=
       rebase_path(perftests_gypi.angle_perf_tests_win_sources, ".", "../..")
-  }
 
     sources += [ "//gpu/angle_perftests_main.cc" ]
 
@@ -122,4 +123,5 @@ test("angle_perftests") {
       "//third_party/angle:libEGL",
       "//third_party/angle:libGLESv2",
     ]
+  }
 }