Update the pdfium library

Note: pdfium does not have releases, rather the repository is
      kept up-to-date. This was pulled on: 6/4/2015.

Change-Id: I3c6d77fa1f7c6da2b7df3c4e5c00093900125bc2
diff --git a/testing/embedder_test.h b/testing/embedder_test.h
new file mode 100644
index 0000000..b0834dd
--- /dev/null
+++ b/testing/embedder_test.h
@@ -0,0 +1,106 @@
+// Copyright (c) 2015 PDFium 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 TESTING_EMBEDDER_TEST_H_
+#define TESTING_EMBEDDER_TEST_H_
+
+#include <string>
+
+#include "../core/include/fxcrt/fx_system.h"
+#include "../public/fpdf_dataavail.h"
+#include "../public/fpdf_ext.h"
+#include "../public/fpdf_formfill.h"
+#include "../public/fpdfview.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "v8/include/v8.h"
+
+class TestLoader;
+
+// This class is used to load a PDF document, and then run programatic
+// API tests against it.
+class EmbedderTest : public ::testing::Test,
+                     public UNSUPPORT_INFO,
+                     public IPDF_JSPLATFORM,
+                     public FPDF_FORMFILLINFO {
+ public:
+  class Delegate {
+   public:
+    virtual ~Delegate() { }
+
+    // Equivalent to UNSUPPORT_INFO::FSDK_UnSupport_Handler().
+    virtual void UnsupportedHandler(int type) { }
+
+    // Equivalent to IPDF_JSPLATFORM::app_alert().
+    virtual int Alert(FPDF_WIDESTRING message, FPDF_WIDESTRING title,
+                      int type, int icon) {
+      return 0;
+    }
+
+    // Equivalent to FPDF_FORMFILLINFO::FFI_SetTimer().
+    virtual int SetTimer(int msecs, TimerCallback fn) { return 0; }
+
+    // Equivalent to FPDF_FORMFILLINFO::FFI_KillTimer().
+    virtual void KillTimer(int id) { }
+  };
+
+  EmbedderTest();
+  virtual ~EmbedderTest();
+
+  void SetUp() override;
+  void TearDown() override;
+
+  void SetDelegate(Delegate* delegate) {
+    delegate_ = delegate ? delegate : default_delegate_;
+  }
+
+  FPDF_DOCUMENT document() { return document_; }
+  FPDF_FORMHANDLE form_handle() { return form_handle_; }
+
+  // Open the document specified by |filename|, and create its form fill
+  // environment, or return false on failure.
+  virtual bool OpenDocument(const std::string& filename);
+
+  // Perform JavaScript actions that are to run at document open time.
+  virtual void DoOpenActions();
+
+  // Determine the page numbers present in the document.
+  virtual int GetFirstPageNum();
+  virtual int GetPageCount();
+
+  // Load a specific page of the open document.
+  virtual FPDF_PAGE LoadPage(int page_number);
+
+  // Convert a loaded page into a bitmap.
+  virtual FPDF_BITMAP RenderPage(FPDF_PAGE page);
+
+  // Relese the resources obtained from LoadPage(). Further use of |page|
+  // is prohibited after this call is made.
+  virtual void UnloadPage(FPDF_PAGE page);
+
+ protected:
+  Delegate* delegate_;
+  Delegate* default_delegate_;
+  FPDF_DOCUMENT document_;
+  FPDF_FORMHANDLE form_handle_;
+  FPDF_AVAIL avail_;
+  FX_DOWNLOADHINTS hints_;
+  FPDF_FILEACCESS file_access_;
+  FX_FILEAVAIL file_avail_;
+  v8::Platform* platform_;
+  v8::StartupData natives_;
+  v8::StartupData snapshot_;
+  TestLoader* loader_;
+  size_t file_length_;
+  char* file_contents_;
+
+ private:
+  static void UnsupportedHandlerTrampoline(UNSUPPORT_INFO*, int type);
+  static int AlertTrampoline(IPDF_JSPLATFORM* plaform, FPDF_WIDESTRING message,
+                             FPDF_WIDESTRING title, int type, int icon);
+  static int SetTimerTrampoline(FPDF_FORMFILLINFO* info, int msecs,
+                                TimerCallback fn);
+  static void KillTimerTrampoline(FPDF_FORMFILLINFO* info, int id);
+};
+
+#endif  // TESTING_EMBEDDER_TEST_H_