cc: Rename PictureLayerTiling(Set) Iterator to CoverageIterator

cc/layers/picture_layer_impl.cc

Index: cc/layers/picture_layer_impl.cc
diff --git a/cc/layers/picture_layer_impl.cc b/cc/layers/picture_layer_impl.cc
index 9d456fc3b65d50e0a2b54a52e098d6ecd2012d2b..b88beb0ee24df8ccce5b9c6263610cfedceb9265 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -105,10 +105,8 @@ void PictureLayerImpl::AppendQuads(QuadSink* quad_sink,
       gfx::QuadF(rect),
       &clipped);
   if (ShowDebugBorders()) {
-    for (PictureLayerTilingSet::Iterator iter(tilings_.get(),
-                                              contents_scale_x(),
-                                              rect,
-                                              ideal_contents_scale_);
+    for (PictureLayerTilingSet::CoverageIterator iter(
+        tilings_.get(), contents_scale_x(), rect, ideal_contents_scale_);
          iter;
          ++iter) {
       SkColor color;
@@ -150,10 +148,8 @@ void PictureLayerImpl::AppendQuads(QuadSink* quad_sink,
   // unused can be considered for removal.
   std::vector<PictureLayerTiling*> seen_tilings;
 
-  for (PictureLayerTilingSet::Iterator iter(tilings_.get(),
-                                            contents_scale_x(),
-                                            rect,
-                                            ideal_contents_scale_);
+  for (PictureLayerTilingSet::CoverageIterator iter(
+      tilings_.get(), contents_scale_x(), rect, ideal_contents_scale_);
        iter;
        ++iter) {
     gfx::Rect geometry_rect = iter.geometry_rect();
@@ -479,7 +475,7 @@ void PictureLayerImpl::SetIsMask(bool is_mask) {
 ResourceProvider::ResourceId PictureLayerImpl::ContentsResourceId() const {
   gfx::Rect content_rect(content_bounds());
   float scale = contents_scale_x();
-  for (PictureLayerTilingSet::Iterator
+  for (PictureLayerTilingSet::CoverageIterator
            iter(tilings_.get(), scale, content_rect, ideal_contents_scale_);
        iter;
        ++iter) {
@@ -526,7 +522,8 @@ bool PictureLayerImpl::AreVisibleResourcesReady() const {
     if (tiling->contents_scale() < min_acceptable_scale)
       continue;
 
-    for (PictureLayerTiling::Iterator iter(tiling, contents_scale_x(), rect);
+    for (PictureLayerTiling::CoverageIterator

[danakj, 2013/03/27 23:52:58]

nit: is this wrapping super weird or is it just me? i'd have expected it to wrap
at the ( or at the ,s

[enne (OOO), 2013/03/28 17:45:07]

Yeah, that is really unexpected.  Filed http://b/8498792 and fixed here.

+             iter(tiling, contents_scale_x(), rect);
          iter;
          ++iter) {
       if (should_force_uploads && *iter)