Creating PNG images from web content to be used by OverviewMode navigation

athena/test/sample_activity.cc

Index: athena/test/sample_activity.cc
diff --git a/athena/test/sample_activity.cc b/athena/test/sample_activity.cc
index 849671e25c1aed226e465169f17a6205c5ecf57a..e3f86c617bb3a56316e7e6e50da13481360d7f54 100644
--- a/athena/test/sample_activity.cc
+++ b/athena/test/sample_activity.cc
@@ -4,6 +4,7 @@
 
 #include "athena/test/sample_activity.h"
 
+#include "ui/gfx/image/image.h"
 #include "ui/views/background.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
@@ -81,8 +82,8 @@ views::Widget* SampleActivity::CreateWidget() {
   return NULL;
 }
 
-gfx::ImageSkia SampleActivity::GetOverviewModeImage() {
-  return gfx::ImageSkia();
+gfx::Image SampleActivity::GetOverviewModeImage() {
+  return gfx::Image();
 }
 
 void SampleActivity::PrepareContentsForOverview() {