Refactor GL bindings so there is no global GLApi or DriverGL.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
index 3600c1982174487819c473945e8932e43d382b19..fbad893fcf5980c46e381231db12982031d7eb5d 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
@@ -3398,7 +3398,7 @@ TEST_P(GLES2DecoderManualInitTest, InvalidateFramebufferBinding) {
   EXPECT_TRUE(
       gl::MockGLInterface::GetGLProcAddress("glInvalidateFramebuffer") !=
       reinterpret_cast<gl::GLFunctionPointerType>(
-          gl::g_driver_gl.fn.glDiscardFramebufferEXTFn));
+          gl::g_current_gl_driver->fn.glDiscardFramebufferEXTFn));
   EXPECT_TRUE(
       gl::MockGLInterface::GetGLProcAddress("glInvalidateFramebuffer") !=
       gl::MockGLInterface::GetGLProcAddress("glDiscardFramebufferEXT"));
@@ -3449,7 +3449,7 @@ TEST_P(GLES2DecoderManualInitTest, DiscardFramebufferEXT) {
   EXPECT_TRUE(
       gl::MockGLInterface::GetGLProcAddress("glDiscardFramebufferEXT") ==
       reinterpret_cast<gl::GLFunctionPointerType>(
-          gl::g_driver_gl.fn.glDiscardFramebufferEXTFn));
+          gl::g_current_gl_driver->fn.glDiscardFramebufferEXTFn));
 
   const GLenum target = GL_FRAMEBUFFER;
   const GLsizei count = 1;
@@ -3492,7 +3492,7 @@ TEST_P(GLES2DecoderManualInitTest, ClearBackbufferBitsOnDiscardFramebufferEXT) {
   EXPECT_TRUE(
       gl::MockGLInterface::GetGLProcAddress("glDiscardFramebufferEXT") ==
       reinterpret_cast<gl::GLFunctionPointerType>(
-          gl::g_driver_gl.fn.glDiscardFramebufferEXTFn));
+          gl::g_current_gl_driver->fn.glDiscardFramebufferEXTFn));
 
   const GLenum target = GL_FRAMEBUFFER;
   const GLsizei count = 1;
@@ -3716,7 +3716,7 @@ TEST_P(GLES2DecoderManualInitTest,
   EXPECT_TRUE(
       gl::MockGLInterface::GetGLProcAddress("glDiscardFramebufferEXT") ==
       reinterpret_cast<gl::GLFunctionPointerType>(
-          gl::g_driver_gl.fn.glDiscardFramebufferEXTFn));
+          gl::g_current_gl_driver->fn.glDiscardFramebufferEXTFn));
 
   const GLenum target = GL_FRAMEBUFFER;
   const GLsizei count = 1;