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

pdf/page_indicator.h

+// Copyright (c) 2012 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_PAGE_INDICATOR_H_
+#define PDF_PAGE_INDICATOR_H_
+
+#include <string>
+#include <vector>
+
+#include "pdf/control.h"
+#include "pdf/fading_control.h"
+#include "ppapi/cpp/image_data.h"
+#include "ppapi/cpp/point.h"
+#include "ppapi/cpp/rect.h"
+
+namespace chrome_pdf {
+
+class NumberImageGenerator;
+
+const uint32 kPageIndicatorScrollFadeTimeoutMs = 240;
+const uint32 kPageIndicatorInitialFadeTimeoutMs = 960;
+const uint32 kPageIndicatorSplashTimeoutMs = 2000;
+
+class PageIndicator : public FadingControl {
+ public:
+  PageIndicator();
+  virtual ~PageIndicator();
+  virtual bool CreatePageIndicator(
+      uint32 id,
+      bool visible,
+      Control::Owner* delegate,
+      NumberImageGenerator* number_image_generator,
+      bool always_visible);
+
+  void Configure(const pp::Point& origin, const pp::ImageData& background);
+
+  int current_page() const { return current_page_; }
+  void set_current_page(int current_page);
+
+  virtual void Splash();
+  void Splash(uint32 splash_timeout, uint32 page_timeout);
+
+  // Returns the y position where the page indicator should be drawn given the
+  // position of the scrollbar and the total document height and the plugin
+  // height.
+  int GetYPosition(
+      int vertical_scrollbar_y, int document_height, int plugin_height);
+
+  // Control interface.
+  virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc);
+  virtual void OnTimerFired(uint32 timer_id);
+
+  // FadingControl interface.
+  virtual void OnFadeInComplete();
+
+ private:
+  void ResetFadeOutTimer();
+
+  int current_page_;
+  pp::ImageData background_;
+  NumberImageGenerator* number_image_generator_;
+  uint32 fade_out_timer_id_;
+  uint32 splash_timeout_;
+  uint32 fade_timeout_;
+
+  bool always_visible_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_PAGE_INDICATOR_H_