Delete usage and support for EGL_ANGLE_software_display extension.

webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc

Index: webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc
===================================================================
--- webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc	(revision 206508)
+++ webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc	(working copy)
@@ -600,9 +600,9 @@
     decoder_->set_engine(gpu_scheduler_.get());
 
     if (is_offscreen)
-      surface_ = gfx::GLSurface::CreateOffscreenGLSurface(false, size);
+      surface_ = gfx::GLSurface::CreateOffscreenGLSurface(size);
     else
-      surface_ = gfx::GLSurface::CreateViewGLSurface(false, window);
+      surface_ = gfx::GLSurface::CreateViewGLSurface(window);
 
     if (!surface_.get()) {
       LOG(ERROR) << "Could not create GLSurface.";