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

pdf/progress_control.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_PROGRESS_CONTROL_H_
+#define PDF_PROGRESS_CONTROL_H_
+
+#include <string>
+#include <vector>
+
+#include "pdf/control.h"
+#include "pdf/fading_control.h"
+#include "ppapi/cpp/image_data.h"
+
+namespace chrome_pdf {
+
+class ProgressControl : public FadingControl {
+ public:
+  static const double kCompleted;
+
+  enum ProgressEventIds {
+    EVENT_ID_PROGRESS_COMPLETED,
+  };
+
+  ProgressControl();
+  virtual ~ProgressControl();
+  virtual bool CreateProgressControl(uint32 id,
+                                     bool visible,
+                                     Control::Owner* delegate,
+                                     double progress,
+                                     float device_scale,
+                                     const std::vector<pp::ImageData>& images,
+                                     const pp::ImageData& background,
+                                     const std::string& text);
+  void Reconfigure(const pp::ImageData& background,
+                   const std::vector<pp::ImageData>& images,
+                   float device_scale);
+
+  static void CalculateLayout(pp::Instance* instance,
+                              const std::vector<pp::ImageData>& images,
+                              const pp::ImageData& background,
+                              const std::string& text,
+                              float device_scale,
+                              pp::Size* ctrl_size,
+                              pp::Rect* image_rc,
+                              pp::Rect* text_rc);
+
+  // Control interface.
+  virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc);
+
+  // ProgressControl interface
+  // Set progress indicator in percents from 0% to 100%.
+  virtual void SetProgress(double progress);
+
+ private:
+  void PrepareBackground();
+  void AdjustBackground();
+  size_t GetImageIngex() const;
+
+  double progress_;
+  float device_scale_;
+  std::vector<pp::ImageData> images_;
+  pp::ImageData background_;
+  pp::ImageData ctrl_background_;
+  std::string text_;
+  pp::Rect image_rc_;
+  pp::Rect text_rc_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_PROGRESS_CONTROL_H_