Decouple some graphics-related IsLowEndDevice() policies for 1GB devices.

ui/gl/gl_surface_egl.cc

Index: ui/gl/gl_surface_egl.cc
diff --git a/ui/gl/gl_surface_egl.cc b/ui/gl/gl_surface_egl.cc
index 3f37fc213cad1f94aeda6618e688e5855e55b791..5a6d88790bad822d7b02b239579b86f3a6de5e97 100644
--- a/ui/gl/gl_surface_egl.cc
+++ b/ui/gl/gl_surface_egl.cc
@@ -1083,7 +1083,7 @@ bool PbufferGLSurfaceEGL::Initialize(GLSurfaceFormat format) {
   // to use a compatible config. We expect the client to request RGB565
   // onscreen surface also for this to work (with the exception of
   // fullscreen video).
-  if (base::SysInfo::IsLowEndDevice())
+  if (base::SysInfo::AmountOfPhysicalMemoryMB() <= 512)
     format.SetRGB565();
 #endif