diff -r 000000000000 -r 6474c204b198 dom/camera/FallbackCameraControl.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/camera/FallbackCameraControl.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "CameraControlImpl.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+namespace mozilla {
+  class RecorderProfileManager;
+
+  namespace layers {
+    class GraphicBufferLocked;
+  }
+}
+
+/**
+ * Fallback camera control subclass. Can be used as a template for the
+ * definition of new camera support classes.
+ */
+class FallbackCameraControl : public CameraControlImpl
+{
+public:
+  FallbackCameraControl(uint32_t aCameraId) : CameraControlImpl(aCameraId) { }
+
+  void OnAutoFocusComplete(bool aSuccess);
+  void OnAutoFocusMoving(bool aIsMoving) { }
+  void OnTakePictureComplete(uint8_t* aData, uint32_t aLength) { }
+  void OnTakePictureError() { }
+  void OnNewPreviewFrame(layers::GraphicBufferLocked* aBuffer) { }
+  void OnRecorderEvent(int msg, int ext1, int ext2) { }
+  void OnError(CameraControlListener::CameraErrorContext aWhere,
+               CameraControlListener::CameraError aError) { }
+
+  virtual nsresult Set(uint32_t aKey, const nsAString& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, nsAString& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Set(uint32_t aKey, double aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, double& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Set(uint32_t aKey, int32_t aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, int32_t& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Set(uint32_t aKey, int64_t aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, int64_t& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Set(uint32_t aKey, const Size& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, Size& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Set(uint32_t aKey, const nsTArray<Region>& aRegions) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, nsTArray<Region>& aRegions) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+
+  virtual nsresult SetLocation(const Position& aLocation) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+
+  virtual nsresult Get(uint32_t aKey, nsTArray<Size>& aSizes) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, nsTArray<nsString>& aValues) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult Get(uint32_t aKey, nsTArray<double>& aValues) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+
+  nsresult PushParameters() { return NS_ERROR_FAILURE; }
+  nsresult PullParameters() { return NS_ERROR_FAILURE; }
+
+protected:
+  ~FallbackCameraControl();
+
+  virtual nsresult StartPreviewImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult StopPreviewImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult AutoFocusImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult StartFaceDetectionImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult StopFaceDetectionImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult TakePictureImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult StartRecordingImpl(DeviceStorageFileDescriptor* aFileDescriptor,
+                                      const StartRecordingOptions* aOptions = nullptr) MOZ_OVERRIDE
+                                        { return NS_ERROR_FAILURE; }
+  virtual nsresult StopRecordingImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult ResumeContinuousFocusImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult PushParametersImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual nsresult PullParametersImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }
+  virtual already_AddRefed<RecorderProfileManager> GetRecorderProfileManagerImpl() MOZ_OVERRIDE { return nullptr; }
+
+private:
+  FallbackCameraControl(const FallbackCameraControl&) MOZ_DELETE;
+  FallbackCameraControl& operator=(const FallbackCameraControl&) MOZ_DELETE;
+};