Remove unsafe mode to enable es3 api by default for WebGL2 and ES3 context

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 476222672ace590cd35e28cf16dc94b3de0515ff..ae5486d281859eaeafcf925676f8ada3a23d1a49 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -111,7 +111,13 @@ class TextureManagerTest : public GpuServiceTest {
     TestHelper::SetupFeatureInfoInitExpectationsWithGLVersion(
         gl_.get(), gl_extensions, "", gl_version,
         feature_info_->context_type(), enable_es3);
-    feature_info_->InitializeForTesting();
+    if (enable_es3) {
+      EXPECT_CALL(*gl_, GetIntegerv(35055, _))
+          .Times(1)
+          .RetiresOnSaturation();
+    }
+    feature_info_->InitializeForTesting(
+        enable_es3 ? CONTEXT_TYPE_OPENGLES3 : CONTEXT_TYPE_OPENGLES2);
     if (enable_es3) {
       EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_COLOR_ATTACHMENTS, _))
           .WillOnce(SetArgPointee<1>(8))