Reland: cc: Fix size_t to int truncations in layers/ output/ playback/ quads/

cc/layers/heads_up_display_layer_impl.cc

Index: cc/layers/heads_up_display_layer_impl.cc
diff --git a/cc/layers/heads_up_display_layer_impl.cc b/cc/layers/heads_up_display_layer_impl.cc
index 986c332e406c7ac64f6ef5538b212a758c2f1725..fad85a09ee9eee2a9b97711e28e7474be89966be 100644
--- a/cc/layers/heads_up_display_layer_impl.cc
+++ b/cc/layers/heads_up_display_layer_impl.cc
@@ -7,6 +7,7 @@
 #include <algorithm>
 #include <vector>
 
+#include "base/numerics/safe_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
@@ -383,7 +384,8 @@ SkRect HeadsUpDisplayLayerImpl::DrawFPSDisplay(
 
   const int kFontHeight = 15;
 
-  const int kGraphWidth = fps_counter->time_stamp_history_size() - 2;
+  const int kGraphWidth =
+      base::saturated_cast<int>(fps_counter->time_stamp_history_size()) - 2;
   const int kGraphHeight = 40;
 
   const int kHistogramWidth = 37;
@@ -625,7 +627,8 @@ SkRect HeadsUpDisplayLayerImpl::DrawPaintTimeDisplay(
   const int kPadding = 4;
   const int kFontHeight = 14;
 
-  const int kGraphWidth = paint_time_counter->HistorySize();
+  const int kGraphWidth =
+      base::saturated_cast<int>(paint_time_counter->HistorySize());
   const int kGraphHeight = 40;
 
   SkPaint paint = CreatePaint();