Add events for configuring and adding new providers to FSP API.

chrome/common/extensions/api/file_system_provider.idl

Index: chrome/common/extensions/api/file_system_provider.idl
diff --git a/chrome/common/extensions/api/file_system_provider.idl b/chrome/common/extensions/api/file_system_provider.idl
index 0b589617243fe5d7862ad3ceaa4d8b06f691329d..0772f2c337a78cf5053da65f4d79d8a846b489e4 100644
--- a/chrome/common/extensions/api/file_system_provider.idl
+++ b/chrome/common/extensions/api/file_system_provider.idl
@@ -44,7 +44,7 @@ namespace fileSystemProvider {
   // Source of the file system data.
   enum FileSystemSource {
     // The file system is handling a file, eg. an archive file obtained via the
-    // <code>OnLaunched</code> event and the <code>file_handlers</code> manifest
+    // <code>onLaunched</code> event and the <code>file_handlers</code> manifest
     // entry.
     FILE,
 
@@ -171,6 +171,8 @@ namespace fileSystemProvider {
   dictionary UnmountRequestedOptions {
     // The identifier of the file system to be unmounted.
     DOMString fileSystemId;
+
+    // The unique identifier of this request.
     long requestId;
   };
 
@@ -432,6 +434,15 @@ namespace fileSystemProvider {
     DOMString? tag;
   };
 
+  // Options for the <code>onConfigureRequested()</code> event.
+  [nodoc] dictionary ConfigureRequestedOptions {
+    // The identifier of the file system to be configured.
+    DOMString fileSystemId;
+
+    // The unique identifier of this request.
+    long requestId;
+  };
+
   // Callback to receive the result of getAll() function.
   callback GetAllCallback = void(FileSystemInfo[] fileSystems);
 
@@ -647,6 +658,21 @@ namespace fileSystemProvider {
         ProviderSuccessCallback successCallback,
         ProviderErrorCallback errorCallback);
 
+    // Raised when showing a configuration dialog for <code>fileSystemId</code>
+    // is requested. If it's not supported, then this event must not be handled.
+    [maxListeners=1, nodoc] static void onConfigureRequested(
+        ConfigureRequestedOptions options,
+        ProviderSuccessCallback successCallback,
+        ProviderErrorCallback errorCallback);
+
+    // Raised when showing a dialog for mounting a new file system is requested.
+    // If the extension/app is a file handler, then this event shouldn't be
+    // handled. Instead <code>onLaunched</code> should be handled in order to
+    // mount new file systems when a file is opened.
+    [maxListeners=1, nodoc] static void onMountRequested(
+        ProviderSuccessCallback successCallback,
+        ProviderErrorCallback errorCallback);
+
     // Raised when setting a new directory watcher is requested. If an error
     // occurs, then <code>errorCallback</code> must be called.
     [maxListeners=1, nodoc] static void onAddWatcherRequested(