Send compositor frame IPC with metadata.

cc/software_renderer_unittest.cc

Index: cc/software_renderer_unittest.cc
diff --git a/cc/software_renderer_unittest.cc b/cc/software_renderer_unittest.cc
index f7dc195eee6b7886ccc24bdff241e20a6b69a43b..21e5d6f3144dec84a3f72aeee68bbc9e1064bad3 100644
--- a/cc/software_renderer_unittest.cc
+++ b/cc/software_renderer_unittest.cc
@@ -4,6 +4,7 @@
 
 #include "cc/software_renderer.h"
 
+#include "cc/compositor_frame_metadata.h"
 #include "cc/quad_sink.h"
 #include "cc/render_pass.h"
 #include "cc/render_pass_draw_quad.h"
@@ -53,6 +54,8 @@ public:
     virtual void enforceManagedMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE { };
     virtual bool hasImplThread() const OVERRIDE { return false; }
     virtual bool shouldClearRootRenderPass() const OVERRIDE { return m_shouldClearRootRenderPass; }
+    virtual CompositorFrameMetadata makeCompositorFrameMetadata() const
+        OVERRIDE { return CompositorFrameMetadata(); }
 
 protected:
     scoped_ptr<FakeOutputSurface> m_outputSurface;