Rewire Android WebView's compositor changed signal.

content/public/test/test_synchronous_compositor_android.cc

Index: content/public/test/test_synchronous_compositor_android.cc
diff --git a/content/public/test/test_synchronous_compositor_android.cc b/content/public/test/test_synchronous_compositor_android.cc
index 04afeef54b5ce3f1775b9cd991243dafbbe7a7e3..7f9bd2359b6402096882db250c11a7ae07065f0f 100644
--- a/content/public/test/test_synchronous_compositor_android.cc
+++ b/content/public/test/test_synchronous_compositor_android.cc
@@ -19,11 +19,10 @@ TestSynchronousCompositor::~TestSynchronousCompositor() {
 
 void TestSynchronousCompositor::SetClient(SynchronousCompositorClient* client) {
   if (client_)
-    client_->DidDestroyCompositor(this);
+    client_->DidDestroyCompositor(this, 0, 0);
   client_ = client;
   if (client_) {
-    client_->DidInitializeCompositor(this);
-    client_->DidBecomeCurrent(this);
+    client_->DidInitializeCompositor(this, 0, 0);
   }
 }