cc: Stretch textures by .5 texels to prevent out of bounds sampling

cc/picture_layer_impl_unittest.cc

Index: cc/picture_layer_impl_unittest.cc
diff --git a/cc/picture_layer_impl_unittest.cc b/cc/picture_layer_impl_unittest.cc
index c1845ceea29f0bd27372e5b47df98a25a5b8b9d4..b4b9f4c2302b813235d325b69a9ce849e48a0d93 100644
--- a/cc/picture_layer_impl_unittest.cc
+++ b/cc/picture_layer_impl_unittest.cc
@@ -174,7 +174,8 @@ class PictureLayerImplTest : public testing::Test {
       PicturePileImpl* pile) {
     for (PictureLayerTiling::Iterator iter(tiling,
                                            tiling->contents_scale(),
-                                           tiling->ContentRect());
+                                           tiling->ContentRect(),
+                                           PictureLayerTiling::LayerDeviceAlignmentUnknown);
          iter; ++iter) {
       EXPECT_TRUE(*iter);
       EXPECT_EQ(pile, iter->picture_pile());
@@ -249,7 +250,8 @@ TEST_F(PictureLayerImplTest, clonePartialInvalidation) {
         tiling->contents_scale()));
     for (PictureLayerTiling::Iterator iter(tiling,
                                            tiling->contents_scale(),
-                                           tiling->ContentRect());
+                                           tiling->ContentRect(),
+                                           PictureLayerTiling::LayerDeviceAlignmentUnknown);
          iter; ++iter) {
       EXPECT_TRUE(*iter);
       EXPECT_FALSE(iter.geometry_rect().IsEmpty());
@@ -309,7 +311,8 @@ TEST_F(PictureLayerImplTest, noInvalidationBoundsChange) {
         tiling->contents_scale()));
     for (PictureLayerTiling::Iterator iter(tiling,
                                            tiling->contents_scale(),
-                                           tiling->ContentRect());
+                                           tiling->ContentRect(),
+                                           PictureLayerTiling::LayerDeviceAlignmentUnknown);
          iter; ++iter) {
       EXPECT_TRUE(*iter);
       EXPECT_FALSE(iter.geometry_rect().IsEmpty());
@@ -358,7 +361,8 @@ TEST_F(PictureLayerImplTest, addTilesFromNewRecording) {
 
     for (PictureLayerTiling::Iterator iter(tiling,
                                            tiling->contents_scale(),
-                                           tiling->ContentRect());
+                                           tiling->ContentRect(),
+                                           PictureLayerTiling::LayerDeviceAlignmentUnknown);
          iter; ++iter) {
       EXPECT_FALSE(iter.full_tile_geometry_rect().IsEmpty());
       // Ensure there is a recording for this tile.