Add ownership edges between HostSharedBitmap and shared memory

cc/resources/shared_bitmap.cc

Index: cc/resources/shared_bitmap.cc
diff --git a/cc/resources/shared_bitmap.cc b/cc/resources/shared_bitmap.cc
index 2eb128af661f4d1e2f3fccc3a3e7368fed16cbea..3990b744e5d8ab07696d7ee023532f411c1dc4d1 100644
--- a/cc/resources/shared_bitmap.cc
+++ b/cc/resources/shared_bitmap.cc
@@ -15,8 +15,10 @@
 
 namespace cc {
 
-SharedBitmap::SharedBitmap(uint8_t* pixels, const SharedBitmapId& id)
-    : pixels_(pixels), id_(id) {}
+SharedBitmap::SharedBitmap(uint8_t* pixels,
+                           base::SharedMemory* shared_memory,
+                           const SharedBitmapId& id)
+    : pixels_(pixels), shared_memory_(shared_memory), id_(id) {}
 
 SharedBitmap::~SharedBitmap() {
 }