Do not run MSE related tests when MSE is not available.

content/browser/media/media_source_browsertest.cc

 // Copyright (c) 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.
 
 #include "base/command_line.h"
 #include "content/browser/media/media_browsertest.h"
 #include "content/public/common/content_switches.h"
+#if defined(OS_ANDROID)
+#include "base/android/build_info.h"
+#endif
 
 // Common media types.
-static const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
-static const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
-static const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
+const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
+const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
+const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
 
 namespace content {
 
+// MSE is available on all desktop platforms and on Android 4.1 and later.
+static bool IsMSESupported() {
+#if defined(OS_ANDROID)
+  if (base::android::BuildInfo::GetInstance()->sdk_int() < 16) {
+    LOG(INFO) << "MSE is only supported in Android 4.1 and later.";
+    return false;
+  }
+#endif  // defined(OS_ANDROID)
+  return true;
+}
+
 class MediaSourceTest : public content::MediaBrowserTest {
  public:
   void TestSimplePlayback(const char* media_file, const char* media_type,
                           const char* expectation) {
+    if (!IsMSESupported()) {
+      LOG(INFO) << "Skipping test - MSE not supported.";
+      return;
+    }
+
     std::vector<StringPair> query_params;
     query_params.push_back(std::make_pair("mediafile", media_file));
     query_params.push_back(std::make_pair("mediatype", media_type));
     RunMediaTestPage("media_source_player.html", &query_params, expectation,
                      true);
   }
 
 #if defined(OS_ANDROID)
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     command_line->AppendSwitch(
@@ skipping 14 matching lines @@
   TestSimplePlayback("bear-320x240-audio-only.webm", kWebMAudioOnly, kEnded);
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSourceTest, Playback_Type_Error) {
   TestSimplePlayback("bear-320x240-video-only.webm", kWebMAudioOnly, kError);
 }
 
 // Flaky test crbug.com/246308
 // Test changed to skip checks resulting in flakiness. Proper fix still needed.
 IN_PROC_BROWSER_TEST_F(MediaSourceTest, ConfigChangeVideo) {
+  if (!IsMSESupported()) {
+    LOG(INFO) << "Skipping test - MSE not supported.";
+    return;
+  }
   RunMediaTestPage("mse_config_change.html", NULL, kEnded, true);
 }
 
 }  // namespace content