Plumb firing passive event listeners.

content/public/test/browser_test_utils.h

Index: content/public/test/browser_test_utils.h
diff --git a/content/public/test/browser_test_utils.h b/content/public/test/browser_test_utils.h
index ed6aa653f0ce8045e64ca6cc0d2c4e6e7b9a0588..17937263d40b05140000368964225d272e92f7c1 100644
--- a/content/public/test/browser_test_utils.h
+++ b/content/public/test/browser_test_utils.h
@@ -17,6 +17,7 @@
 #include "base/process/process.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
+#include "cc/output/compositor_frame.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -425,16 +426,21 @@ class FrameWatcher : public BrowserMessageFilter {
   // Wait for |frames_to_wait| swap mesages from the compositor.
   void WaitFrames(int frames_to_wait);
 
+  // Return the meta data received in the last compositor
+  // swap frame.
+  const cc::CompositorFrameMetadata& LastMetadata();
+
  private:
   ~FrameWatcher() override;
 
   // Overridden BrowserMessageFilter methods.
   bool OnMessageReceived(const IPC::Message& message) override;
 
-  void ReceivedFrameSwap();
+  void ReceivedFrameSwap(cc::CompositorFrameMetadata meta_data);
 
   int frames_to_wait_;
   base::Closure quit_;
+  cc::CompositorFrameMetadata last_metadata_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameWatcher);
 };
@@ -463,6 +469,31 @@ class MainThreadFrameObserver : public IPC::Listener {
   DISALLOW_COPY_AND_ASSIGN(MainThreadFrameObserver);
 };
 
+// Watches for an input msg to be consumed.
+class InputMsgWatcher : public BrowserMessageFilter {
+ public:
+  InputMsgWatcher(RenderWidgetHost* render_widget_host,
+                  blink::WebInputEvent::Type type);
+
+  // Wait until ack message occurs, returning the ack result from
+  // the message.
+  uint32_t WaitForAck();
+
+ private:
+  ~InputMsgWatcher() override;
+
+  // Overridden BrowserMessageFilter methods.
+  bool OnMessageReceived(const IPC::Message& message) override;
+
+  void ReceivedAck(blink::WebInputEvent::Type ack_type, uint32_t ack_state);
+
+  blink::WebInputEvent::Type wait_for_type_;
+  uint32_t ack_result_;
+  base::Closure quit_;
+
+  DISALLOW_COPY_AND_ASSIGN(InputMsgWatcher);
+};
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_