cc: Redraw incomplete frames when new texture uploads finish

cc/layer_tree_host_impl.cc

Index: cc/layer_tree_host_impl.cc
diff --git a/cc/layer_tree_host_impl.cc b/cc/layer_tree_host_impl.cc
index e6b9ac99e0d49ae673f001b56a4ce6ad514d74aa..4ba356ba11bf96de521ef37504d2aefefc68364b 100644
--- a/cc/layer_tree_host_impl.cc
+++ b/cc/layer_tree_host_impl.cc
@@ -837,7 +837,13 @@ bool LayerTreeHostImpl::swapBuffers()
     DCHECK(m_renderer);
 
     m_fpsCounter->markEndOfFrame();
-    return m_renderer->swapBuffers();
+    bool result = m_renderer->swapBuffers();
+
+    if (!activeTree()->AreVisibleResourcesReady()) {
+      m_client->setNeedsRedrawOnVisibleTextureUploadOnImplThread();
+    }
+
+    return result;
 }
 
 const gfx::Size& LayerTreeHostImpl::deviceViewportSize() const
@@ -906,10 +912,11 @@ void LayerTreeHostImpl::createPendingTree()
     m_client->onHasPendingTreeStateChanged(pendingTree());
 }
 
-void LayerTreeHostImpl::checkForCompletedSetPixels()
+bool LayerTreeHostImpl::checkForCompletedSetPixels()
 {
     if (m_tileManager)
-        m_tileManager->CheckForCompletedSetPixels();
+        return m_tileManager->CheckForCompletedSetPixels();
+    return false;
 }
 
 void LayerTreeHostImpl::activatePendingTreeIfNeeded()