Inform the WebFrameClient of BeforeUnload/Unload handlers

Source/core/frame/LocalDOMWindow.cpp

Index: Source/core/frame/LocalDOMWindow.cpp
diff --git a/Source/core/frame/LocalDOMWindow.cpp b/Source/core/frame/LocalDOMWindow.cpp
index ee80a05b0ddfa044471e6f6a30942a0f01963611..af25054a292930e24335fe758a1e235ba3199b84 100644
--- a/Source/core/frame/LocalDOMWindow.cpp
+++ b/Source/core/frame/LocalDOMWindow.cpp
@@ -231,6 +231,8 @@ static void addUnloadEventListener(LocalDOMWindow* domWindow)
     if (set.isEmpty())
         disableSuddenTermination();

[clamy, 2015/01/20 16:47:01]

Note: this call as well as the equivalent ones down below will be removed in a
following patch when the support for the per-frame sudden termination tracking
has landed in Chromium.

     set.add(domWindow);
+    domWindow->frame()->loader().client()->suddenTerminationDisablerChanged(
+        true, FrameLoaderClient::UnloadHandler);
 }
 
 static void removeUnloadEventListener(LocalDOMWindow* domWindow)
@@ -242,6 +244,8 @@ static void removeUnloadEventListener(LocalDOMWindow* domWindow)
     set.remove(it);
     if (set.isEmpty())
         enableSuddenTermination();
+    domWindow->frame()->loader().client()->suddenTerminationDisablerChanged(
+        false, FrameLoaderClient::UnloadHandler);
 }
 
 static void removeAllUnloadEventListeners(LocalDOMWindow* domWindow)
@@ -253,6 +257,7 @@ static void removeAllUnloadEventListeners(LocalDOMWindow* domWindow)
     set.removeAll(it);
     if (set.isEmpty())
         enableSuddenTermination();
+    // TODO: remove the right number here
 }
 
 static void addBeforeUnloadEventListener(LocalDOMWindow* domWindow)
@@ -261,6 +266,8 @@ static void addBeforeUnloadEventListener(LocalDOMWindow* domWindow)
     if (set.isEmpty())
         disableSuddenTermination();
     set.add(domWindow);
+    domWindow->frame()->loader().client()->suddenTerminationDisablerChanged(
+        true, FrameLoaderClient::BeforeUnloadHandler);
 }
 
 static void removeBeforeUnloadEventListener(LocalDOMWindow* domWindow)
@@ -272,6 +279,8 @@ static void removeBeforeUnloadEventListener(LocalDOMWindow* domWindow)
     set.remove(it);
     if (set.isEmpty())
         enableSuddenTermination();
+    domWindow->frame()->loader().client()->suddenTerminationDisablerChanged(
+        false, FrameLoaderClient::BeforeUnloadHandler);
 }
 
 static void removeAllBeforeUnloadEventListeners(LocalDOMWindow* domWindow)
@@ -283,6 +292,7 @@ static void removeAllBeforeUnloadEventListeners(LocalDOMWindow* domWindow)
     set.removeAll(it);
     if (set.isEmpty())
         enableSuddenTermination();
+    // TODO: remove the right number here
 }
 
 static bool allowsBeforeUnloadListeners(LocalDOMWindow* window)