EGLSyncControlVSyncProvider 64 ui/gl/gl_surface_egl.cc explicit EGLSyncControlVSyncProvider(EGLSurface surface) EGLSyncControlVSyncProvider 94 ui/gl/gl_surface_egl.cc DISALLOW_COPY_AND_ASSIGN(EGLSyncControlVSyncProvider); EGLSyncControlVSyncProvider 383 ui/gl/gl_surface_egl.cc vsync_provider_.reset(new EGLSyncControlVSyncProvider(surface_));