<webview>: Implement dialog API

content/common/browser_plugin/browser_plugin_constants.h

Index: content/common/browser_plugin/browser_plugin_constants.h
diff --git a/content/common/browser_plugin/browser_plugin_constants.h b/content/common/browser_plugin/browser_plugin_constants.h
index 4ffa7aa377dd9efce2a567ededa6b7c1cd1df8fb..fafff7bd1052816536c4be80e2604a76b5b0dc09 100644
--- a/content/common/browser_plugin/browser_plugin_constants.h
+++ b/content/common/browser_plugin/browser_plugin_constants.h
@@ -44,6 +44,7 @@ extern const char kAttributePartition[];
 extern const char kAttributeSrc[];
 
 // Events.
+extern const char kEventDialog[];
 extern const char kEventNewWindow[];
 extern const char kEventRequestPermission[];
 extern const char kEventResponsive[];
@@ -51,11 +52,14 @@ extern const char kEventSizeChanged[];
 extern const char kEventUnresponsive[];
 
 // Parameters/properties on events.
+extern const char kDefaultPromptText[];
 extern const char kId[];
 extern const char kInitialHeight[];
 extern const char kInitialWidth[];
 extern const char kIsTopLevel[];
 extern const char kLastUnlockedBySelf[];
+extern const char kMessageText[];
+extern const char kMessageType[];
 extern const char kName[];
 extern const char kNewHeight[];
 extern const char kNewWidth[];