SetNeedsRedraw directly when updating a visible tile.

cc/test/test_web_graphics_context_3d.h

Index: cc/test/test_web_graphics_context_3d.h
diff --git a/cc/test/test_web_graphics_context_3d.h b/cc/test/test_web_graphics_context_3d.h
index ff2c7049eaa263fb7ec958315b4b113178f96275..976557fa5f79071e280b00e239c7ac85273148d5 100644
--- a/cc/test/test_web_graphics_context_3d.h
+++ b/cc/test/test_web_graphics_context_3d.h
@@ -357,6 +357,11 @@ class TestWebGraphicsContext3D {
     test_support_ = test_support;
   }
 
+  // Set this to 1 to make async texture uploads complete.
+  void set_query_result_available_ext(int value) {
+    query_result_available_ext_ = value;
+  }
+
   int width() const { return width_; }
   int height() const { return height_; }
   bool reshape_called() const { return reshape_called_; }
@@ -460,6 +465,7 @@ class TestWebGraphicsContext3D {
   UpdateType last_update_type_;
   unsigned next_insert_sync_point_;
   unsigned last_waited_sync_point_;
+  int query_result_available_ext_;
 
   unsigned bound_buffer_;
   TextureTargets texture_targets_;