Revert of Change mojo_public_bindings_unittests to use chromium environment.

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

Index: third_party/mojo/src/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
diff --git a/third_party/mojo/src/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc b/third_party/mojo/src/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
index 508787a50d2f02af04b7ffd303ecfdd2c7922a7f..6c192854ee78ea94f84a4fc6ef75898cf1d3027e 100644
--- a/third_party/mojo/src/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
+++ b/third_party/mojo/src/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/message_loop/message_loop.h"
-#include "mojo/message_pump/message_pump_mojo.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/public/cpp/environment/environment.h"
+#include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/public/interfaces/bindings/tests/math_calculator.mojom.h"
 #include "mojo/public/interfaces/bindings/tests/sample_interfaces.mojom.h"
 #include "mojo/public/interfaces/bindings/tests/sample_service.mojom.h"
@@ -119,7 +119,7 @@
       // Add some more and wait for re-entrant call to Output!
       calculator_->Add(
           1.0, MakeRunnable(&SelfDestructingMathCalculatorUI::Output, this));
-      base::MessageLoop::current()->RunUntilIdle();
+      RunLoop::current()->RunUntilIdle();
     } else {
       delete this;
     }
@@ -184,13 +184,13 @@
 
 class InterfacePtrTest : public testing::Test {
  public:
-  InterfacePtrTest() : loop_(common::MessagePumpMojo::Create()) {}
   ~InterfacePtrTest() override { loop_.RunUntilIdle(); }
 
   void PumpMessages() { loop_.RunUntilIdle(); }
 
  private:
-  base::MessageLoop loop_;
+  Environment env_;
+  RunLoop loop_;
 };
 
 TEST_F(InterfacePtrTest, IsBound) {
@@ -470,7 +470,8 @@
 };
 
 TEST(StrongConnectorTest, Math) {
-  base::MessageLoop loop(common::MessagePumpMojo::Create());
+  Environment env;
+  RunLoop loop;
 
   bool error_received = false;
   bool destroyed = false;
@@ -538,7 +539,8 @@
 };
 
 TEST(WeakConnectorTest, Math) {
-  base::MessageLoop loop(common::MessagePumpMojo::Create());
+  Environment env;
+  RunLoop loop;
 
   bool error_received = false;
   bool destroyed = false;