Fix gl_tests

gpu/command_buffer/tests/gl_tests_main.cc

Index: gpu/command_buffer/tests/gl_tests_main.cc
diff --git a/gpu/command_buffer/tests/gl_tests_main.cc b/gpu/command_buffer/tests/gl_tests_main.cc
index 60b2e7ad4eff73a9a1a6e17f53dbab8a72300b67..326ef5ef78f02534030e592d74a99029de23ad44 100644
--- a/gpu/command_buffer/tests/gl_tests_main.cc
+++ b/gpu/command_buffer/tests/gl_tests_main.cc
@@ -5,6 +5,7 @@
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
+#include "gpu/command_buffer/client/gles2_lib.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/gl/gl_surface.h"
@@ -20,6 +21,7 @@ int main(int argc, char** argv) {
     gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
 #endif
   gfx::GLSurface::InitializeOneOff();
+  ::gles2::Initialize();
   MessageLoop::Type message_loop_type = MessageLoop::TYPE_UI;
   MessageLoop main_message_loop(message_loop_type);
   testing::InitGoogleMock(&argc, argv);