cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/thread_proxy.cc

Index: cc/thread_proxy.cc
diff --git a/cc/thread_proxy.cc b/cc/thread_proxy.cc
index 64152f6a9313e36fa7cd8930fcf369abba7d739b..ac58216e651e66277fc41e6bac8bc508816f4c4c 100644
--- a/cc/thread_proxy.cc
+++ b/cc/thread_proxy.cc
@@ -66,7 +66,7 @@ ThreadProxy::~ThreadProxy()
     DCHECK(!m_started);
 }
 
-bool ThreadProxy::compositeAndReadback(void *pixels, const IntRect& rect)
+bool ThreadProxy::compositeAndReadback(void *pixels, const gfx::Rect& rect)
 {
     TRACE_EVENT0("cc", "ThreadPRoxy::compositeAndReadback");
     DCHECK(isMainThread());