Revert of Change mojo_public_bindings_unittests to use chromium environment.

third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc

Index: third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc
diff --git a/third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc b/third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc
index e6fddb783c7ecd1885921e7a257a739989a092ae..e008b7497095c0cfdb09303bd8ce16d78051ba1c 100644
--- a/third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc
+++ b/third_party/mojo/src/mojo/public/cpp/bindings/tests/union_unittest.cc
@@ -3,9 +3,6 @@
 // found in the LICENSE file.
 
 #include <vector>
-
-#include "base/message_loop/message_loop.h"
-#include "mojo/message_pump/message_pump_mojo.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/lib/array_internal.h"
@@ -13,7 +10,9 @@
 #include "mojo/public/cpp/bindings/lib/bounds_checker.h"
 #include "mojo/public/cpp/bindings/lib/fixed_buffer.h"
 #include "mojo/public/cpp/bindings/string.h"
+#include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/test_support/test_utils.h"
+#include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/public/interfaces/bindings/tests/test_structs.mojom.h"
 #include "mojo/public/interfaces/bindings/tests/test_unions.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -221,6 +220,7 @@
 }
 
 TEST(UnionTest, OutOfAlignmentValidation) {
+  Environment environment;
   size_t size = sizeof(internal::PodUnion_Data);
   // Get an aligned object and shift the alignment.
   mojo::internal::FixedBufferForTesting aligned_buf(size + 1);
@@ -236,6 +236,7 @@
 }
 
 TEST(UnionTest, OOBValidation) {
+  Environment environment;
   size_t size = sizeof(internal::PodUnion_Data) - 1;
   mojo::internal::FixedBufferForTesting buf(size);
   internal::PodUnion_Data* data = internal::PodUnion_Data::New(&buf);
@@ -248,6 +249,7 @@
 }
 
 TEST(UnionTest, UnknownTagValidation) {
+  Environment environment;
   size_t size = sizeof(internal::PodUnion_Data);
   mojo::internal::FixedBufferForTesting buf(size);
   internal::PodUnion_Data* data = internal::PodUnion_Data::New(&buf);
@@ -316,6 +318,7 @@
 }
 
 TEST(UnionTest, NullStringValidation) {
+  Environment environment;
   size_t size = sizeof(internal::ObjectUnion_Data);
   mojo::internal::FixedBufferForTesting buf(size);
   internal::ObjectUnion_Data* data = internal::ObjectUnion_Data::New(&buf);
@@ -330,6 +333,7 @@
 }
 
 TEST(UnionTest, StringPointerOverflowValidation) {
+  Environment environment;
   size_t size = sizeof(internal::ObjectUnion_Data);
   mojo::internal::FixedBufferForTesting buf(size);
   internal::ObjectUnion_Data* data = internal::ObjectUnion_Data::New(&buf);
@@ -344,6 +348,7 @@
 }
 
 TEST(UnionTest, StringValidateOOB) {
+  Environment environment;
   size_t size = 32;
   mojo::internal::FixedBufferForTesting buf(size);
   internal::ObjectUnion_Data* data = internal::ObjectUnion_Data::New(&buf);
@@ -378,6 +383,7 @@
 }
 
 TEST(UnionTest, PodUnionInArraySerialization) {
+  Environment environment;
   Array<PodUnionPtr> array(2);
   array[0] = PodUnion::New();
   array[1] = PodUnion::New();
@@ -404,6 +410,7 @@
 }
 
 TEST(UnionTest, PodUnionInArraySerializationWithNull) {
+  Environment environment;
   Array<PodUnionPtr> array(2);
   array[0] = PodUnion::New();
 
@@ -430,6 +437,7 @@
 // TODO(azani): Move back in struct_unittest.cc when possible.
 // Struct tests
 TEST(UnionTest, Clone_Union) {
+  Environment environment;
   SmallStructPtr small_struct(SmallStruct::New());
   small_struct->pod_union = PodUnion::New();
   small_struct->pod_union->set_f_int8(10);
@@ -440,6 +448,7 @@
 
 // Serialization test of a struct with a union of plain old data.
 TEST(UnionTest, Serialization_UnionOfPods) {
+  Environment environment;
   SmallStructPtr small_struct(SmallStruct::New());
   small_struct->pod_union = PodUnion::New();
   small_struct->pod_union->set_f_int32(10);
@@ -458,6 +467,7 @@
 
 // Serialization test of a struct with a union of structs.
 TEST(UnionTest, Serialization_UnionOfObjects) {
+  Environment environment;
   SmallObjStructPtr obj_struct(SmallObjStruct::New());
   obj_struct->obj_union = ObjectUnion::New();
   String hello("hello world");
@@ -481,6 +491,7 @@
 
 // Validation test of a struct with a union.
 TEST(UnionTest, Validation_UnionsInStruct) {
+  Environment environment;
   SmallStructPtr small_struct(SmallStruct::New());
   small_struct->pod_union = PodUnion::New();
   small_struct->pod_union->set_f_int32(10);
@@ -504,6 +515,7 @@
 
 // Validation test of a struct union fails due to unknown union tag.
 TEST(UnionTest, Validation_PodUnionInStruct_Failure) {
+  Environment environment;
   SmallStructPtr small_struct(SmallStruct::New());
   small_struct->pod_union = PodUnion::New();
   small_struct->pod_union->set_f_int32(10);
@@ -528,6 +540,7 @@
 
 // Validation fails due to non-nullable null union in struct.
 TEST(UnionTest, Validation_NullUnion_Failure) {
+  Environment environment;
   SmallStructNonNullableUnionPtr small_struct(
       SmallStructNonNullableUnion::New());
 
@@ -547,6 +560,7 @@
 
 // Validation passes with nullable null union.
 TEST(UnionTest, Validation_NullableUnion) {
+  Environment environment;
   SmallStructPtr small_struct(SmallStruct::New());
 
   size_t size = GetSerializedSize_(small_struct);
@@ -582,6 +596,7 @@
 }
 
 TEST(UnionTest, PodUnionInMapSerialization) {
+  Environment environment;
   Map<String, PodUnionPtr> map;
   map.insert("one", PodUnion::New());
   map.insert("two", PodUnion::New());
@@ -606,6 +621,7 @@
 }
 
 TEST(UnionTest, PodUnionInMapSerializationWithNull) {
+  Environment environment;
   Map<String, PodUnionPtr> map;
   map.insert("one", PodUnion::New());
   map.insert("two", nullptr);
@@ -639,6 +655,7 @@
 }
 
 TEST(UnionTest, StructInUnionSerialization) {
+  Environment environment;
   DummyStructPtr dummy(DummyStruct::New());
   dummy->f_int8 = 8;
 
@@ -662,6 +679,7 @@
 }
 
 TEST(UnionTest, StructInUnionValidation) {
+  Environment environment;
   DummyStructPtr dummy(DummyStruct::New());
   dummy->f_int8 = 8;
 
@@ -687,6 +705,7 @@
 }
 
 TEST(UnionTest, StructInUnionValidationNonNullable) {
+  Environment environment;
   DummyStructPtr dummy(nullptr);
 
   ObjectUnionPtr obj(ObjectUnion::New());
@@ -711,6 +730,7 @@
 }
 
 TEST(UnionTest, StructInUnionValidationNullable) {
+  Environment environment;
   DummyStructPtr dummy(nullptr);
 
   ObjectUnionPtr obj(ObjectUnion::New());
@@ -735,6 +755,8 @@
 }
 
 TEST(UnionTest, ArrayInUnionGetterSetter) {
+  Environment environment;
+
   Array<int8_t> array(2);
   array[0] = 8;
   array[1] = 9;
@@ -747,6 +769,8 @@
 }
 
 TEST(UnionTest, ArrayInUnionSerialization) {
+  Environment environment;
+
   Array<int8_t> array(2);
   array[0] = 8;
   array[1] = 9;
@@ -773,6 +797,8 @@
 }
 
 TEST(UnionTest, ArrayInUnionValidation) {
+  Environment environment;
+
   Array<int8_t> array(2);
   array[0] = 8;
   array[1] = 9;
@@ -798,6 +824,7 @@
 }
 
 TEST(UnionTest, MapInUnionGetterSetter) {
+  Environment environment;
   Map<String, int8_t> map;
   map.insert("one", 1);
   map.insert("two", 2);
@@ -810,6 +837,7 @@
 }
 
 TEST(UnionTest, MapInUnionSerialization) {
+  Environment environment;
   Map<String, int8_t> map;
   map.insert("one", 1);
   map.insert("two", 2);
@@ -836,6 +864,7 @@
 }
 
 TEST(UnionTest, MapInUnionValidation) {
+  Environment environment;
   Map<String, int8_t> map;
   map.insert("one", 1);
   map.insert("two", 2);
@@ -874,6 +903,7 @@
 }
 
 TEST(UnionTest, UnionInUnionSerialization) {
+  Environment environment;
   PodUnionPtr pod(PodUnion::New());
   pod->set_f_int8(10);
 
@@ -897,6 +927,7 @@
 }
 
 TEST(UnionTest, UnionInUnionValidation) {
+  Environment environment;
   PodUnionPtr pod(PodUnion::New());
   pod->set_f_int8(10);
 
@@ -923,6 +954,7 @@
 }
 
 TEST(UnionTest, UnionInUnionValidationNonNullable) {
+  Environment environment;
   PodUnionPtr pod(nullptr);
 
   ObjectUnionPtr obj(ObjectUnion::New());
@@ -996,6 +1028,7 @@
 }
 
 TEST(UnionTest, HandleInUnionValidation) {
+  Environment environment;
   ScopedMessagePipeHandle pipe0;
   ScopedMessagePipeHandle pipe1;
 
@@ -1023,6 +1056,7 @@
 }
 
 TEST(UnionTest, HandleInUnionValidationNull) {
+  Environment environment;
   ScopedMessagePipeHandle pipe;
   HandleUnionPtr handle(HandleUnion::New());
   handle->set_f_message_pipe(pipe.Pass());
@@ -1061,7 +1095,8 @@
 };
 
 TEST(UnionTest, InterfaceInUnion) {
-  base::MessageLoop run_loop(common::MessagePumpMojo::Create());
+  Environment env;
+  RunLoop run_loop;
   SmallCacheImpl impl;
   SmallCachePtr ptr;
   Binding<SmallCache> bindings(&impl, GetProxy(&ptr));
@@ -1075,7 +1110,8 @@
 }
 
 TEST(UnionTest, InterfaceInUnionSerialization) {
-  base::MessageLoop run_loop(common::MessagePumpMojo::Create());
+  Environment env;
+  RunLoop run_loop;
   SmallCacheImpl impl;
   SmallCachePtr ptr;
   Binding<SmallCache> bindings(&impl, GetProxy(&ptr));
@@ -1114,7 +1150,8 @@
 };
 
 TEST(UnionTest, UnionInInterface) {
-  base::MessageLoop run_loop(common::MessagePumpMojo::Create());
+  Environment env;
+  RunLoop run_loop;
   UnionInterfaceImpl impl;
   UnionInterfacePtr ptr;
   Binding<UnionInterface> bindings(&impl, GetProxy(&ptr));