[SP] Turn off slimming paint by default.

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index b3d221a5302bd16ae95c5b23c36c4d8d6ca0254b..2bdca9fb74504c591a743367f10dc2386f586e09 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -469,8 +469,7 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs() {
       !command_line.HasSwitch(switches::kDisableTouchAdjustment);
 
   prefs.slimming_paint_enabled = command_line.HasSwitch(
-      switches::kEnableSlimmingPaint) ||

[chrishtr, 2015/06/12 20:18:09]

switches::kDisableSlimmingPaint || !switches::kEnableSlimmingPaint

[wkorman, 2015/06/12 20:20:17]

We want it enabled if the enable switch is not set?

[chrishtr, 2015/06/12 20:24:24]

Oh right..then:

switches::kEnableSlimmingPaint && !switches::kDisableSlimmingPaint

-      !command_line.HasSwitch(switches::kDisableSlimmingPaint);
+      switches::kEnableSlimmingPaint);
 
 #if defined(OS_MACOSX) || defined(OS_CHROMEOS)
   bool default_enable_scroll_animator = true;