Transfer date/time value to the chooser as a double

Source/web/ExternalDateTimeChooser.cpp

Index: Source/web/ExternalDateTimeChooser.cpp
diff --git a/Source/web/ExternalDateTimeChooser.cpp b/Source/web/ExternalDateTimeChooser.cpp
index 44208db757fd12331504203675f74e7274b0d2ef..e3eb66c75071611d86bde053df51f88ba7463ccf 100644
--- a/Source/web/ExternalDateTimeChooser.cpp
+++ b/Source/web/ExternalDateTimeChooser.cpp
@@ -53,6 +53,12 @@ private:
         delete this;
     }
 
+    virtual void didChooseValue(double value) OVERRIDE
+    {
+        m_chooser->didChooseValue(value);
+        delete this;
+    }
+
     virtual void didCancelChooser() OVERRIDE
     {
         m_chooser->didCancelChooser();
@@ -108,6 +114,7 @@ bool ExternalDateTimeChooser::openDateTimeChooser(ChromeClientImpl* chromeClient
     webParams.type = toWebDateTimeInputType(parameters.type);
     webParams.anchorRectInScreen = chromeClient->rootViewToScreen(parameters.anchorRectInRootView);
     webParams.currentValue = parameters.currentValue;
+    webParams.doubleValue = parameters.doubleValue;
     webParams.suggestionValues = parameters.suggestionValues;
     webParams.localizedSuggestionValues = parameters.localizedSuggestionValues;
     webParams.suggestionLabels = parameters.suggestionLabels;
@@ -139,6 +146,17 @@ void ExternalDateTimeChooser::didChooseValue(const WebString& value)
         m_client->didEndChooser();
 }
 
+void ExternalDateTimeChooser::didChooseValue(double value)
+{
+    if (m_client)
+        m_client->didChooseValue(value);
+    // didChooseValue might run JavaScript code, and endChooser() might be
+    // called. However DateTimeChooserCompletionImpl still has one reference to
+    // this object.
+    if (m_client)
+        m_client->didEndChooser();
+}
+
 void ExternalDateTimeChooser::didCancelChooser()
 {
     if (m_client)