cc: Make tiling interest rect calc based on viewport.

cc/resources/picture_layer_tiling_set.cc

Index: cc/resources/picture_layer_tiling_set.cc
diff --git a/cc/resources/picture_layer_tiling_set.cc b/cc/resources/picture_layer_tiling_set.cc
index 7c482bd7d30f4980562300bdf893a4a760326eec..0298bbd3a2d51fece0455816c84548b1ce61ab31 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -30,20 +30,20 @@ inline float LargerRatio(float float1, float float2) {
 // static
 scoped_ptr<PictureLayerTilingSet> PictureLayerTilingSet::Create(
     PictureLayerTilingClient* client,
-    size_t max_tiles_for_interest_area,
+    size_t max_interest_area,
     float skewport_target_time_in_seconds,
     int skewport_extrapolation_limit_in_content_pixels) {
   return make_scoped_ptr(new PictureLayerTilingSet(
-      client, max_tiles_for_interest_area, skewport_target_time_in_seconds,
+      client, max_interest_area, skewport_target_time_in_seconds,
       skewport_extrapolation_limit_in_content_pixels));
 }
 
 PictureLayerTilingSet::PictureLayerTilingSet(
     PictureLayerTilingClient* client,
-    size_t max_tiles_for_interest_area,
+    size_t max_interest_area,
     float skewport_target_time_in_seconds,
     int skewport_extrapolation_limit_in_content_pixels)
-    : max_tiles_for_interest_area_(max_tiles_for_interest_area),
+    : max_interest_area_(max_interest_area),
       skewport_target_time_in_seconds_(skewport_target_time_in_seconds),
       skewport_extrapolation_limit_in_content_pixels_(
           skewport_extrapolation_limit_in_content_pixels),
@@ -71,7 +71,7 @@ void PictureLayerTilingSet::CopyTilingsAndPropertiesFromPendingTwin(
     PictureLayerTiling* this_tiling = FindTilingWithScale(contents_scale);
     if (!this_tiling) {
       scoped_ptr<PictureLayerTiling> new_tiling = PictureLayerTiling::Create(
-          contents_scale, raster_source, client_, max_tiles_for_interest_area_,
+          contents_scale, raster_source, client_, max_interest_area_,
           skewport_target_time_in_seconds_,
           skewport_extrapolation_limit_in_content_pixels_);
       tilings_.push_back(new_tiling.Pass());
@@ -259,7 +259,7 @@ PictureLayerTiling* PictureLayerTilingSet::AddTiling(
   }
 
   tilings_.push_back(PictureLayerTiling::Create(
-      contents_scale, raster_source, client_, max_tiles_for_interest_area_,
+      contents_scale, raster_source, client_, max_interest_area_,
       skewport_target_time_in_seconds_,
       skewport_extrapolation_limit_in_content_pixels_));
   PictureLayerTiling* appended = tilings_.back();