[fsp] Add requestUnmount() method together with the request manager.

chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h

Index: chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h
diff --git a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h
index ae14ca2ff45c5fa98040c7fba3ca6b8b10679f4c..48b32bd64726e6e9675a9c8c018e0fdf6669c3a2 100644
--- a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h
+++ b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h
@@ -20,6 +20,39 @@ class FileSystemProviderMountFunction : public ChromeAsyncExtensionFunction {
   virtual bool RunImpl() OVERRIDE;
 };
 
+class FileSystemProviderUnmountFunction : public ChromeAsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("fileSystemProvider.unmount",
+                             FILESYSTEMPROVIDER_UNMOUNT)
+
+ protected:
+  virtual ~FileSystemProviderUnmountFunction() {}
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class FileSystemProviderInternalUnmountRequestedSuccessFunction
+    : public ChromeAsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION(
+      "fileSystemProviderInternal.unmountRequestedSuccess",
+      FILESYSTEMPROVIDERINTERNAL_UNMOUNTREQUESTEDSUCCESS)
+
+ protected:
+  virtual ~FileSystemProviderInternalUnmountRequestedSuccessFunction() {}
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class FileSystemProviderInternalUnmountRequestedErrorFunction
+    : public ChromeAsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("fileSystemProviderInternal.unmountRequestedError",
+                             FILESYSTEMPROVIDERINTERNAL_UNMOUNTREQUESTEDERROR)
+
+ protected:
+  virtual ~FileSystemProviderInternalUnmountRequestedErrorFunction() {}
+  virtual bool RunImpl() OVERRIDE;
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_SYSTEM_PROVIDER_FILE_SYSTEM_PROVIDER_API_H_