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

gpu/command_buffer/service/gles2_cmd_decoder_unittest_2.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdint.h>
 
 #include "base/command_line.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
@@ skipping 555 matching lines @@
     }
   }
 };
 
 class GLES3DecoderTest2 : public GLES2DecoderTest2 {
  public:
   GLES3DecoderTest2() { shader_language_version_ = 300; }
  protected:
   void SetUp() override {
     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;
     init.context_type = CONTEXT_TYPE_OPENGLES3;
     InitDecoderWithCommandLine(init, &command_line);
   }
 };
 
 INSTANTIATE_TEST_CASE_P(Service, GLES2DecoderTest2, ::testing::Bool());
 INSTANTIATE_TEST_CASE_P(Service, GLES3DecoderTest2, ::testing::Bool());
@@ skipping 476 matching lines @@
   TestAcceptedUniform(GL_FLOAT_MAT4x2, Program::kUniformMatrix4x2f, true);
 }
 
 TEST_P(GLES3DecoderTest2, AcceptsUniform_GL_FLOAT_MAT4x3) {
   TestAcceptedUniform(GL_FLOAT_MAT4x3, Program::kUniformMatrix4x3f, true);
 }
 
 }  // namespace gles2
 }  // namespace gpu