Turn on enable begin frame scheduling by default

cc/base/switches.cc

Index: cc/base/switches.cc
diff --git a/cc/base/switches.cc b/cc/base/switches.cc
index 60a87d38e1e7119933d18e7ef98b5f6f869755f0..82e46193974d6c8abac12e921963aff0e7bf5fd3 100644
--- a/cc/base/switches.cc
+++ b/cc/base/switches.cc
@@ -44,8 +44,8 @@ const char kSlowDownRasterScaleFactor[] = "slow-down-raster-scale-factor";
 // Compress tile textures for GPUs supporting it.
 const char kEnableTileCompression[] = "enable-tile-compression";
 
-// Use a BeginFrame signal from browser to renderer to schedule rendering.
-const char kEnableBeginFrameScheduling[] = "enable-begin-frame-scheduling";
+// Disable the BeginFrame signal from browser to renderer to schedule rendering.
+const char kDisableBeginFrameScheduling[] = "disable-begin-frame-scheduling";
 
 // Enables the GPU benchmarking extension
 const char kEnableGpuBenchmarking[] = "enable-gpu-benchmarking";