Re-enable failing EncryptedMediaTests.

BUG=444827, 440675

Review URL: https://codereview.chromium.org/826583002

Cr-Commit-Position: refs/heads/master@{#309584}

chrome/browser/media/encrypted_media_browsertest.cc

@@ -551,23 +551,11 @@ IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VideoClearAudio_WebM) {
   TestSimplePlayback("bear-320x240-av_enc-v.webm", kWebMAudioVideo);
 }
 
-// Fails on linux debug: http://crbug.com/444827.
-#if defined(OS_LINUX)
-#define MAYBE_Playback_VP9Video_WebM DISABLED_Playback_VP9Video_WebM
-#else
-#define MAYBE_Playback_VP9Video_WebM Playback_VP9Video_WebM
-#endif
-IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, MAYBE_Playback_VP9Video_WebM) {
+IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VP9Video_WebM) {
   TestSimplePlayback("bear-320x240-v-vp9_enc-v.webm", kWebMVP9VideoOnly);
 }
 
-// Fails on linux debug: http://crbug.com/444827.
-#if defined(OS_LINUX)
-#define MAYBE_Playback_AudioOnly_WebM_Opus DISABLED_Playback_AudioOnly_WebM_Opus
-#else
-#define MAYBE_Playback_AudioOnly_WebM_Opus Playback_AudioOnly_WebM_Opus
-#endif
-IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, MAYBE_Playback_AudioOnly_WebM_Opus) {
+IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_AudioOnly_WebM_Opus) {
   TestSimplePlayback("bear-320x240-opus-a_enc-a.webm", kWebMAudioOnly);
 }
 
@@ -595,13 +583,7 @@ IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, ConfigChangeVideo) {
   TestConfigChange();
 }
 
-// Fails on linux debug: http://crbug.com/444827.
-#if defined(OS_LINUX)
-#define MAYBE_FrameSizeChangeVideo DISABLED_FrameSizeChangeVideo
-#else
-#define MAYBE_FrameSizeChangeVideo FrameSizeChangeVideo
-#endif
-IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, MAYBE_FrameSizeChangeVideo) {
+IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, FrameSizeChangeVideo) {
   // Times out on Windows XP. http://crbug.com/171937
 #if defined(OS_WIN)
   if (base::win::GetVersion() < base::win::VERSION_VISTA)