cc: Calculate "can use lcd text" on the compositor thread

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index b17b5a4c4a77e2f3f943920bd30e68c95a880bbe..a70c3c63e46c8756fde1f99fbd6e9801be65d65d 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -447,20 +447,6 @@ class CC_EXPORT LayerTreeHost {
 
   bool in_paint_layer_contents_;
 
-  static const int kTotalFramesToUseForLCDTextMetrics = 50;
-  int total_frames_used_for_lcd_text_metrics_;
-
-  struct LCDTextMetrics {
-    LCDTextMetrics()
-        : total_num_cc_layers(0),
-          total_num_cc_layers_can_use_lcd_text(0),
-          total_num_cc_layers_will_use_lcd_text(0) {}
-
-    int64 total_num_cc_layers;
-    int64 total_num_cc_layers_can_use_lcd_text;
-    int64 total_num_cc_layers_will_use_lcd_text;
-  };
-  LCDTextMetrics lcd_text_metrics_;

[Ian Vollick, 2015/02/18 09:12:10]

Could this be moved to LTHI now that LCD text stuff is being calculated there?

[enne (OOO), 2015/02/18 19:22:23]

We could, but do you think we need this data still? I'm going to go with no, and
we can add it back in later post-cc-layerization if anybody wants it again.

[Ian Vollick, 2015/02/18 19:58:13]

sg. Should the histogram be removed in this case?

[enne (OOO), 2015/02/18 20:01:44]

Done.

   int id_;
   bool next_commit_forces_redraw_;