Add wrapper container for a vector of OwnPtr<T>

cc/CCQuadCullerTest.cpp

Index: cc/CCQuadCullerTest.cpp
diff --git a/cc/CCQuadCullerTest.cpp b/cc/CCQuadCullerTest.cpp
index cb67219c35610e8129b59201186c85d0dfc56fa3..0a9d360e182c306366496b9fc6db20801ccf2ae3 100644
--- a/cc/CCQuadCullerTest.cpp
+++ b/cc/CCQuadCullerTest.cpp
@@ -181,18 +181,18 @@ TEST(CCQuadCullerTest, verifyCullCenterTileOnly)
     appendQuads(quadList, sharedStateList, rootLayer.get(), it, occlusionTracker);
     ASSERT_EQ(quadList.size(), 12u);
 
-    IntRect quadVisibleRect1 = quadList[5].get()->quadVisibleRect();
+    IntRect quadVisibleRect1 = quadList[5]->quadVisibleRect();
     EXPECT_EQ(quadVisibleRect1.height(), 50);
 
-    IntRect quadVisibleRect3 = quadList[7].get()->quadVisibleRect();
+    IntRect quadVisibleRect3 = quadList[7]->quadVisibleRect();
     EXPECT_EQ(quadVisibleRect3.width(), 50);
 
     // Next index is 8, not 9, since centre quad culled.
-    IntRect quadVisibleRect4 = quadList[8].get()->quadVisibleRect();
+    IntRect quadVisibleRect4 = quadList[8]->quadVisibleRect();
     EXPECT_EQ(quadVisibleRect4.width(), 50);
     EXPECT_EQ(quadVisibleRect4.x(), 250);
 
-    IntRect quadVisibleRect6 = quadList[10].get()->quadVisibleRect();
+    IntRect quadVisibleRect6 = quadList[10]->quadVisibleRect();
     EXPECT_EQ(quadVisibleRect6.height(), 50);
     EXPECT_EQ(quadVisibleRect6.y(), 250);