Making WebRTC quality tests less dependent on installed tools.

chrome/browser/media/webrtc_browsertest_common.h

 // Copyright 2013 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 CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_COMMON_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_COMMON_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 13 matching lines @@
 // for this is that we don't want to burden regular chrome devs with downloading
 // these sizable reference files by default.
 bool HasReferenceFilesInCheckout();
 
 // Verifies both the YUV and Y4M version of the reference file exists.
 bool HasYuvAndY4mFile(const base::FilePath::CharType* reference_file);
 
 // Retrieves the reference files dir, to which file names can be appended.
 base::FilePath GetReferenceFilesDir();
 
+// Retrieves a tool binary path from chrome/test/data/webrtc/resources/tools,
+// according to platform. If we're running on Linux, requesting pesq will yield
+// chrome/test/data/webrtc/resources/tools/linux/pesq, whereas the same call on
+// Windows will yield chrome/test/data/webrtc/resources/tools/win/pesq.exe.
+// This function does not check the binary actually exists.
+base::FilePath GetToolForPlatform(const std::string& tool_name);
+
 extern const base::FilePath::CharType kReferenceFileName360p[];
 extern const base::FilePath::CharType kReferenceFileName720p[];
 extern const base::FilePath::CharType kYuvFileExtension[];
 extern const base::FilePath::CharType kY4mFileExtension[];
 
 // Executes javascript code which will sleep for |timeout_msec| milliseconds.
 // Returns true on success.
 bool SleepInJavascript(content::WebContents* tab_contents, int timeout_msec);
 
 // This function will execute the provided |javascript| until it causes a call
 // to window.domAutomationController.send() with |evaluates_to| as the message.
 // That is, we are NOT checking what the javascript evaluates to. Returns false
 // if we exceed the TestTimeouts::action_max_timeout().
 // TODO(phoglund): Consider a better interaction method with the javascript
 // than polling javascript methods.
 bool PollingWaitUntil(const std::string& javascript,
                       const std::string& evaluates_to,
                       content::WebContents* tab_contents);
 bool PollingWaitUntil(const std::string& javascript,
                       const std::string& evaluates_to,
                       content::WebContents* tab_contents,
                       int poll_interval_msec);
 
 }  // namespace test
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_COMMON_H_