Support non-integer scroll offsets being passed to the PDF plugin.

pdf/out_of_process_instance.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_OUT_OF_PROCESS_INSTANCE_H_
 #define PDF_OUT_OF_PROCESS_INSTANCE_H_
 
 #include <queue>
 #include <set>
 #include <string>
@@ skipping 187 matching lines @@
   // Process the preview page data information. |src_url| specifies the preview
   // page data location. The |src_url| is in the format:
   // chrome://print/id/page_number/print.pdf
   // |dst_page_index| specifies the blank page index that needs to be replaced
   // with the new page data.
   void ProcessPreviewPageInfo(const std::string& src_url, int dst_page_index);
   // Load the next available preview page into the blank page.
   void LoadAvailablePreviewPage();
 
   // Bound the given scroll offset to the document.
-  pp::Point BoundScrollOffsetToDocument(const pp::Point& scroll_offset);
+  pp::FloatPoint BoundScrollOffsetToDocument(
+      const pp::FloatPoint& scroll_offset);
 
   pp::ImageData image_data_;
   // Used when the plugin is embedded in a page and we have to create the loader
   // ourself.
   pp::CompletionCallbackFactory<OutOfProcessInstance> loader_factory_;
   pp::URLLoader embed_loader_;
   pp::URLLoader embed_preview_loader_;
 
   PP_CursorType_Dev cursor_;  // The current cursor.
 
@@ skipping 117 matching lines @@
   // zooming the plugin so that flickering doesn't occur while zooming.
   bool stop_scrolling_;
 
   // The callback for receiving the password from the page.
   scoped_ptr<pp::CompletionCallbackWithOutput<pp::Var> > password_callback_;
 };
 
 }  // namespace chrome_pdf
 
 #endif  // PDF_OUT_OF_PROCESS_INSTANCE_H_