cc: Don't apply --enable-impl-side-painting to browser compositor

cc/layer_tree_settings.cc

Index: cc/layer_tree_settings.cc
diff --git a/cc/layer_tree_settings.cc b/cc/layer_tree_settings.cc
index ece79916ffeba0f8b69e70e47098d7309f3b1f8f..2da28889037d4017595558cae5b8fdf8863378ce 100644
--- a/cc/layer_tree_settings.cc
+++ b/cc/layer_tree_settings.cc
@@ -37,7 +37,6 @@ LayerTreeSettings::LayerTreeSettings()
 {
     // TODO(danakj): Move this to chromium when we don't go through the WebKit API anymore.
     compositorFrameMessage = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnableCompositorFrameMessage);
-    implSidePainting = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnableImplSidePainting);
     partialSwapEnabled = CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnablePartialSwap);
     backgroundColorInsteadOfCheckerboard = CommandLine::ForCurrentProcess()->HasSwitch(switches::kBackgroundColorInsteadOfCheckerboard);
     showOverdrawInTracing = CommandLine::ForCurrentProcess()->HasSwitch(switches::kTraceOverdraw);