cc: Enable solid color prediction by default

cc/base/switches.cc

Index: cc/base/switches.cc
diff --git a/cc/base/switches.cc b/cc/base/switches.cc
index 3e474cad3b4c4380553ca2248f7b04db01e2f59f..36e20ab49d52ea2106c26d68487d6faed1d7715c 100644
--- a/cc/base/switches.cc
+++ b/cc/base/switches.cc
@@ -19,6 +19,9 @@ const char kDisableThreadedAnimation[] = "disable-threaded-animation";
 // Send a message for every frame from the impl thread to the parent compositor.
 const char kEnableCompositorFrameMessage[] = "enable-compositor-frame-message";
 
+// Do not predict whether the tile will be either solid color or transparent.
+const char kDisableColorEstimator[] = "disable-color-estimator";
+
 // Paint content on the main thread instead of the compositor thread.
 // Overrides the kEnableImplSidePainting flag.
 const char kDisableImplSidePainting[] = "disable-impl-side-painting";
@@ -63,9 +66,6 @@ const char kSlowDownRasterScaleFactor[] = "slow-down-raster-scale-factor";
 // processing cost.
 const char kDisableCheapnessEstimator[] = "disable-cheapness-estimator";
 
-// Predict whether the tile will be either solid color or transparent.
-const char kUseColorEstimator[] = "use-color-estimator";
-
 // The scale factor for low resolution tile contents.
 const char kLowResolutionContentsScaleFactor[] =
     "low-resolution-contents-scale-factor";