[DeviceLight] Add renderer+common parts

content/common/device_sensors/device_light_data.h

Index: content/common/device_sensors/device_light_data.h
diff --git a/content/common/device_sensors/device_light_data.h b/content/common/device_sensors/device_light_data.h
new file mode 100644
index 0000000000000000000000000000000000000000..f52934613f46632bfa5a505162097daa37880b0a
--- /dev/null
+++ b/content/common/device_sensors/device_light_data.h
@@ -0,0 +1,24 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_COMMON_DEVICE_SENSORS_DEVICE_LIGHT_DATA_H_
+#define CONTENT_COMMON_DEVICE_SENSORS_DEVICE_LIGHT_DATA_H_
+
+#include "content/common/content_export.h"
+
+namespace content {
+
+class DeviceLightData {
+ public:
+    CONTENT_EXPORT DeviceLightData();
+    ~DeviceLightData() { }
+
+    double value;

[jochen (gone - plz use gerrit), 2014/06/12 14:33:50]

this class doesn't follow the coding style at all.

data members should be private. don't unnecessarily create bitfields. add
disallow copy/assign. add getters/setters

[timvolodine, 2014/06/12 15:25:28]

re getters/setters: this class is intentionally POD, because it is used for
shared memory.
Similar classes can be found in third_party/WebKit/public/platform/ e.g.
WebGamepads.h.

probably should add a comment:
// This class is intentionally POD and fixed size so that it can be stored
// in shared memory between the browser and the renderer processes.

[riju_, 2014/06/13 17:06:25]

Done. As Tim suggested, adding a comment why this class does not follow chromium
coding style.

+    bool valueIsUpdated : 1;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_DEVICE_SENSORS_DEVICE_LIGHT_DATA_H_
+