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

gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
index b88322fc6fc72f6f090a20068358d7d07ed65201..a7942eda9ee0baf1be4351683a31670578c9dce7 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -89,7 +89,7 @@ void GLES2DecoderManualInitTest::EnableDisableTest(GLenum cap,
 
 TEST_P(GLES3DecoderTest, Basic) {
   // Make sure the setup is correct for ES3.
-  EXPECT_TRUE(decoder_->unsafe_es3_apis_enabled());
+  EXPECT_TRUE(decoder_->es3_apis_enabled());
   EXPECT_TRUE(feature_info()->validators()->texture_bind_target.IsValid(
       GL_TEXTURE_3D));
 }
@@ -1689,7 +1689,6 @@ TEST_P(GLES2DecoderDescheduleUntilFinishedTest, NotYetSignalled) {
 
 void GLES3DecoderTest::SetUp() {
   base::CommandLine command_line(0, nullptr);
-  command_line.AppendSwitch(switches::kEnableUnsafeES3APIs);
   InitState init;
   init.gl_version = "OpenGL ES 3.0";
   init.bind_generates_resource = true;
@@ -1699,7 +1698,6 @@ void GLES3DecoderTest::SetUp() {
 
 void GLES3DecoderWithShaderTest::SetUp() {
   base::CommandLine command_line(0, nullptr);
-  command_line.AppendSwitch(switches::kEnableUnsafeES3APIs);
   InitState init;
   init.gl_version = "OpenGL ES 3.0";
   init.bind_generates_resource = true;
@@ -1710,7 +1708,6 @@ void GLES3DecoderWithShaderTest::SetUp() {
 
 void GLES3DecoderRGBBackbufferTest::SetUp() {
   base::CommandLine command_line(0, nullptr);
-  command_line.AppendSwitch(switches::kEnableUnsafeES3APIs);
   command_line.AppendSwitchASCII(
       switches::kGpuDriverBugWorkarounds,
       base::IntToString(gpu::CLEAR_ALPHA_IN_READPIXELS));