Extensions: Send the tab id to platform apps.

chrome/browser/extensions/api/media_galleries/media_galleries_api.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.
 
 // Implements the Chrome Extensions Media Galleries API.
 
 #include "chrome/browser/extensions/api/media_galleries/media_galleries_api.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "base/platform_file.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/file_system/file_system_api.h"
 #include "chrome/browser/extensions/blob_reader.h"
 #include "chrome/browser/extensions/extension_prefs.h"
+#include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 #include "chrome/browser/media_galleries/media_galleries_dialog_controller.h"
 #include "chrome/browser/media_galleries/media_galleries_histograms.h"
 #include "chrome/browser/media_galleries/media_galleries_preferences.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/storage_monitor/storage_info.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/common/extensions/api/media_galleries.h"
 #include "chrome/common/extensions/permissions/media_galleries_permission.h"
@@ skipping 371 matching lines @@
   media_galleries::UsageCount(media_galleries::ADD_USER_SELECTED_FOLDER);
   return Setup(GetProfile(), &error_, base::Bind(
       &MediaGalleriesAddUserSelectedFolderFunction::OnPreferencesInit, this));
 }
 
 void MediaGalleriesAddUserSelectedFolderFunction::OnPreferencesInit() {
   Profile* profile = GetProfile();
   const std::string& app_id = GetExtension()->id();
   WebContents* contents = GetWebContents(render_view_host(), profile, app_id);
   if (!contents) {
-    SendResponse(false);
-    return;
+    bool found_tab = extensions::ExtensionTabUtil::GetTabById(

[not at google - send to devlin, 2014/01/24 21:37:27]

Comment like "If the request originated from a tab show the confirmation
dialogue in that tab, not the background page".

[Lei Zhang, 2014/01/25 01:47:09]

Done.

+        source_tab_id(), profile, profile->IsOffTheRecord(),
+        NULL, NULL, &contents, NULL);
+    if (!found_tab || !contents) {
+      SendResponse(false);
+      return;
+    }
   }
 
   if (!user_gesture()) {
     OnDirectorySelected(base::FilePath());
     return;
   }
 
   base::FilePath last_used_path =
       extensions::file_system_api::GetLastChooseEntryDirectory(
           extensions::ExtensionPrefs::Get(profile), app_id);
@@ skipping 162 matching lines @@
   if (mime_type_sniffed)
     metadata.mime_type = mime_type;
 
   // TODO(tommycli): Kick off SafeMediaMetadataParser if |mime_type_only| false.
 
   SetResult(metadata.ToValue().release());
   SendResponse(true);
 }
 
 }  // namespace extensions