Fire visibilityChange event on out-of-process iframes.

third_party/WebKit/public/web/WebView.h

Index: third_party/WebKit/public/web/WebView.h
diff --git a/third_party/WebKit/public/web/WebView.h b/third_party/WebKit/public/web/WebView.h
index 63459e89bcb143b9da695aa66180da8b4de0d296..fe067499d76ca76937a48ff478e8bbc3c6fb91d4 100644
--- a/third_party/WebKit/public/web/WebView.h
+++ b/third_party/WebKit/public/web/WebView.h
@@ -126,8 +126,9 @@ public:
 
     // Creates a WebView that is NOT yet initialized. You will need to
     // call setMainFrame to finish the initialization. It is valid
-    // to pass a null client pointer.
-    BLINK_EXPORT static WebView* create(WebViewClient*);
+    // to pass a null client pointer. The WebPageVisibilityState defines the
+    // initial visibility of the page.
+    BLINK_EXPORT static WebView* create(WebViewClient*, WebPageVisibilityState);
 
     // After creating a WebView, you should immediately call this method.
     // You can optionally modify the settings before calling this method.