Handle ctrl + shift + left click on links in PDF.

pdf/pdf_engine.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_PDF_ENGINE_H_
 #define PDF_PDF_ENGINE_H_
 
 #include <stdint.h>
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
 
 #include "ppapi/c/dev/pp_cursor_type_dev.h"
 #include "ppapi/c/dev/ppp_printing_dev.h"
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/image_data.h"
 #include "ppapi/cpp/rect.h"
 #include "ppapi/cpp/size.h"
 #include "ppapi/cpp/url_loader.h"
 #include "ppapi/cpp/var_array.h"
+#include "ui/base/window_open_disposition.h"
 
 namespace pp {
 class InputEvent;
 class VarDictionary;
 }
 
 namespace chrome_pdf {
 
 class Stream;
 
@@ skipping 33 matching lines @@
     virtual void Scroll(const pp::Point& point) = 0;
 
     // Scroll the horizontal/vertical scrollbars to a given position.
     virtual void ScrollToX(int position) = 0;
     virtual void ScrollToY(int position) = 0;
 
     // Scroll to the specified page.
     virtual void ScrollToPage(int page) = 0;
 
     // Navigate to the given url.
-    virtual void NavigateTo(const std::string& url, bool open_in_new_tab) = 0;
+    virtual void NavigateTo(const std::string& url,
+                            WindowOpenDisposition disposition) = 0;
 
     // Updates the cursor.
     virtual void UpdateCursor(PP_CursorType_Dev cursor) = 0;
 
     // Updates the tick marks in the vertical scrollbar.
     virtual void UpdateTickMarks(const std::vector<pp::Rect>& tickmarks) = 0;
 
     // Updates the number of find results for the current search term.  If
     // there are no matches 0 should be passed in.  Only when the plugin has
     // finished searching should it pass in the final count with final_result
@@ skipping 256 matching lines @@
 
   // See the definition of GetPDFPageSizeByIndex in pdf.cc for details.
   virtual bool GetPDFPageSizeByIndex(const void* pdf_buffer,
                                      int pdf_buffer_size, int page_number,
                                      double* width, double* height) = 0;
 };
 
 }  // namespace chrome_pdf
 
 #endif  // PDF_PDF_ENGINE_H_