command_buffer_gles2: Implement EGL default Display as a global object

gpu/gpu.gyp

Index: gpu/gpu.gyp
diff --git a/gpu/gpu.gyp b/gpu/gpu.gyp
index 2b529e1792909c72ec09758603319d61871cf46f..ba01164d1651dd285d0f4c5bab8a64651c03421a 100644
--- a/gpu/gpu.gyp
+++ b/gpu/gpu.gyp
@@ -424,6 +424,7 @@
         '../gpu/gpu.gyp:command_buffer_service',
         '../ui/gfx/gfx.gyp:gfx_geometry',
         '../ui/gl/gl.gyp:gl',
+        'command_buffer/command_buffer.gyp:gles2_utils',
         'gles2_c_lib',
         'gles2_implementation',
       ],
@@ -432,6 +433,8 @@
         # TODO(hendrikw): Move egl out of gles2_conform_support.
         'gles2_conform_support/egl/config.cc',
         'gles2_conform_support/egl/config.h',
+        'gles2_conform_support/egl/context.cc',
+        'gles2_conform_support/egl/context.h',
         'gles2_conform_support/egl/display.cc',
         'gles2_conform_support/egl/display.h',
         'gles2_conform_support/egl/egl.cc',
@@ -439,6 +442,8 @@
         'gles2_conform_support/egl/surface.h',
         'gles2_conform_support/egl/test_support.cc',
         'gles2_conform_support/egl/test_support.h',
+        'gles2_conform_support/egl/thread_state.cc',
+        'gles2_conform_support/egl/thread_state.h',
       ],
 	  'defines': [
         'COMMAND_BUFFER_GLES_LIB_SUPPORT_ONLY',