Upstreaming SelectFileDialog for Android

chrome/browser/file_select_helper.cc

 // 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.
 
 #include "chrome/browser/file_select_helper.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 391 matching lines @@
       NOTREACHED();
   }
 
   FilePath default_file_name = params.default_file_name.IsAbsolute() ?
       params.default_file_name :
       profile_->last_selected_directory().Append(params.default_file_name);
 
   gfx::NativeWindow owning_window =
       platform_util::GetTopLevel(render_view_host_->GetView()->GetNativeView());
 
+#if defined(OS_ANDROID)
+  // Android needs the original MIME types and an additional capture value.
+  std::vector<string16> accept_types(params.accept_types);
+  // We append the capture value to the end of the accept_types vector. This
+  // allows to pass MIME types and the capture value to the SelectFile method.
+  accept_types.push_back(params.capture);
+#endif
+
   select_file_dialog_->SelectFile(
       dialog_type_,
       params.title,
       default_file_name,
       select_file_types_.get(),
       select_file_types_.get() ? 1 : 0,  // 1-based index.
       FILE_PATH_LITERAL(""),
       owning_window,
 #if defined(OS_ANDROID)
-      const_cast<content::FileChooserParams*>(&params));
+      &accept_types);
 #else
       NULL);
 #endif
 
   select_file_types_.reset();
 }
 
 // This method is called when we receive the last callback from the file
 // chooser dialog. Perform any cleanup and release the reference we added
 // in RunFileChooser().
@@ skipping 51 matching lines @@
   // A 1 character accept type will always be invalid (either a "." in the case
   // of an extension or a "/" in the case of a MIME type).
   std::string unused;
   if (accept_type.length() <= 1 ||
       StringToLowerASCII(accept_type) != accept_type ||
       TrimWhitespaceASCII(accept_type, TRIM_ALL, &unused) != TRIM_NONE) {
     return false;
   }
   return true;
 }