Remove begin/end subseq. display items, and store on PaintController instead.

third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp

Index: third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp b/third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp
index f353f35b000db86494abb7a4fa485ff0f7edfc35..caefbf33910ded26ce70d1e975097dc4aab3a15a 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/PaintChunkTest.cpp
@@ -36,20 +36,13 @@ TEST(PaintChunkTest, IdNotMatches) {
   PaintChunkProperties properties;
   FakeDisplayItemClient client1;
   client1.updateCacheGeneration();
-  DisplayItem::Id id1a(client1, DisplayItem::kDrawingFirst);
-  DisplayItem::Id id1b(client1, DisplayItem::kSubsequence);
-  EXPECT_FALSE(PaintChunk(0, 1, &id1a, properties)
-                   .matches(PaintChunk(0, 1, &id1b, properties)));
-  EXPECT_FALSE(PaintChunk(0, 1, &id1b, properties)
-                   .matches(PaintChunk(0, 1, &id1a, properties)));
+  DisplayItem::Id id1(client1, DisplayItem::kDrawingFirst);
 
   FakeDisplayItemClient client2;
   client2.updateCacheGeneration();
   DisplayItem::Id id2(client2, DisplayItem::kDrawingFirst);
-  EXPECT_FALSE(PaintChunk(0, 1, &id1a, properties)
-                   .matches(PaintChunk(0, 1, &id2, properties)));
   EXPECT_FALSE(PaintChunk(0, 1, &id2, properties)
-                   .matches(PaintChunk(0, 1, &id1a, properties)));
+                   .matches(PaintChunk(0, 1, &id1, properties)));
 }
 
 TEST(PaintChunkTest, IdNotMatchesNull) {