Update khronos GLES2/gl2.h header

gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h

Index: gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h
diff --git a/gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h b/gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h
index 8aff42a6711c38b76e8767057b41fa31fe89f168..8f87a40da0f26f0dd71772e5fbcf519c8b02ad12 100644
--- a/gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h
+++ b/gpu/command_buffer/client/gles2_trace_implementation_impl_autogen.h
@@ -570,7 +570,8 @@ void GLES2TraceImplementation::ShaderBinary(
 }
 
 void GLES2TraceImplementation::ShaderSource(
-    GLuint shader, GLsizei count, const char** str, const GLint* length) {
+    GLuint shader, GLsizei count, const GLchar* const* str,
+    const GLint* length) {
   TRACE_EVENT_BINARY_EFFICIENT0("gpu", "GLES2Trace::ShaderSource");
   gl_->ShaderSource(shader, count, str, length);
 }