[fsp] Add support for moving files within a provided file system.

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 d48444c327b82930fa7f7eb2c7dd9397f190347b..7bd3a8255798149c7a2b7482d0b37d3208898a5b 100644
--- a/chrome/common/extensions/api/file_system_provider.idl
+++ b/chrome/common/extensions/api/file_system_provider.idl
@@ -141,6 +141,14 @@ namespace fileSystemProvider {
     DOMString targetPath;
   };
 
+  // Options for the <code>onMoveEntryRequested()</code> event.
+  dictionary MoveEntryRequestedOptions {
+    DOMString fileSystemId;
+    long requestId;
+    DOMString sourcePath;
+    DOMString targetPath;
+  };
+
   // Callback to receive the result of mount() function.
   callback MountCallback = void([nodoc, instanceOf=DOMError] object error);
 
@@ -281,6 +289,13 @@ namespace fileSystemProvider {
         CopyEntryRequestedOptions options,
         ProviderSuccessCallback successCallback,
         ProviderErrorCallback errorCallback);
+
+    // Raised when moving an entry (recursively if a directory) is requested.
+    // If an error occurs, then <code>errorCallback</code> must be called.
+    [maxListeners=1, nodoc] static void onMoveEntryRequested(
+        MoveEntryRequestedOptions options,
+        ProviderSuccessCallback successCallback,
+        ProviderErrorCallback errorCallback);
   };
 };