Add the pdf plugin's source in src\pdf.

pdf/thumbnail_control.h

+// Copyright (c) 2010 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 PDF_THUMBNAIL_CONTROL_H_
+#define PDF_THUMBNAIL_CONTROL_H_
+
+#include <map>
+#include <vector>
+
+#include "pdf/control.h"
+#include "pdf/pdf_engine.h"
+#include "ppapi/cpp/input_event.h"
+
+namespace chrome_pdf {
+
+class NumberImageGenerator;
+
+class ThumbnailControl : public Control {
+ public:
+  enum ThumbnailEventIds {
+    EVENT_ID_THUMBNAIL_SELECTED = 100,
+  };
+
+  explicit ThumbnailControl();
+  virtual ~ThumbnailControl();
+
+  // Sets current position of the thumnail control.
+  void SetPosition(int position, int total, bool invalidate);
+  void SlideIn();
+  void SlideOut();
+
+  virtual bool CreateThumbnailControl(
+      uint32 id, const pp::Rect& rc,
+      bool visible, Owner* owner, PDFEngine* engine,
+      NumberImageGenerator* number_image_generator);
+
+  // Control interface.
+  virtual void Show(bool visible, bool invalidate);
+  virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc);
+  virtual bool HandleEvent(const pp::InputEvent& event);
+  virtual void OnTimerFired(uint32 timer_id);
+
+  virtual void ResetEngine(PDFEngine* engine);
+
+ private:
+  void ClearCache();
+
+  struct PageInfo {
+    int index;
+    pp::Rect rect;
+  };
+
+  PDFEngine* engine_;
+  pp::Rect visible_rect_;
+  std::vector<PageInfo> visible_pages_;
+  std::map<int, pp::ImageData*> image_cache_;
+  int sliding_width_;
+  int sliding_shift_;
+  int sliding_timeout_;
+  uint32 sliding_timer_id_;
+  NumberImageGenerator* number_image_generator_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_THUMBNAIL_CONTROL_H_