Fix initialisation of s_acceleratedAnimationEnabled flag.

cc/settings.cc

Index: cc/settings.cc
diff --git a/cc/settings.cc b/cc/settings.cc
index 5954704c2a89d8a75023dc36f77a9a98ab03a1c6..3aa1326e306b38fe983bc1d562b9305f0afef0b6 100644
--- a/cc/settings.cc
+++ b/cc/settings.cc
@@ -24,7 +24,7 @@ void reset()
 
     s_perTilePaintingEnabled = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnablePerTilePainting);
     s_partialSwapEnabled = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnablePartialSwap);
-    s_acceleratedAnimationEnabled = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kDisableThreadedAnimation);
+    s_acceleratedAnimationEnabled = !CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kDisableThreadedAnimation);
     s_pageScalePinchZoomEnabled = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnablePinchInCompositor);
     s_jankInsteadOfCheckerboard = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kJankInsteadOfCheckerboard);
     s_backgroundColorInsteadOfCheckerboard = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kBackgroundColorInsteadOfCheckerboard);