Make CanPlayType return "probably" for HI10P h264 videos.

content/browser/media/media_canplaytype_browsertest.cc

Index: content/browser/media/media_canplaytype_browsertest.cc
diff --git a/content/browser/media/media_canplaytype_browsertest.cc b/content/browser/media/media_canplaytype_browsertest.cc
index 1a3af5a3c6e5ffd53ecca8329e1c9178f43a980a..e96ea4d8066ebbf09a418e423a9ae9733bfab0a0 100644
--- a/content/browser/media/media_canplaytype_browsertest.cc
+++ b/content/browser/media/media_canplaytype_browsertest.cc
@@ -73,6 +73,15 @@ const char* kMp2tsAc3Eac3Probably = kPropProbably;
 const char* kMp2tsAc3Eac3Probably = kNot;
 #endif
 
+// High 10-bit profile is only available when we can use ffmpeg
+// to decode h264. On Android, we only use hardware codecs.

[ddorwin, 2016/04/01 00:36:42]

Android is a little more nuanced: "... we only use platform decoders for H.264."

Or perhaps replace the last two sentences with "Even though FFmpeg is used on
Android, we only use platform decoders for H.264."

[hubbe, 2016/04/04 22:01:49]

Done.

+// Also check if ffmpeg has been disabled.

[ddorwin, 2016/04/01 00:36:42]

This is the main condition; Android is the corner case. The suggestion above
makes this moot.

[hubbe, 2016/04/04 22:01:49]

Done.

+#if !defined(MEDIA_DISABLE_FFMPEG) && !defined(OS_ANDROID)
+const char* kHi10pProbably = kPropProbably;
+#else
+const char* kHi10pProbably = kMaybe;
+#endif
+
 namespace content {
 
 class MediaCanPlayTypeTest : public MediaBrowserTest {
@@ -985,6 +994,21 @@ IN_PROC_BROWSER_TEST_F(MediaCanPlayTypeTest, CodecSupportTest_Avc1Variants) {
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.64E0FF\"'"));
 
   //
+  // High 10-bit Profile (110 == 0x6E).
+  //  The first two digits after the dot must be 6E. The third and fourth digits
+  //  contain constraint_set_flags and must be valid hex. The last two digits
+  //  should be any valid H.264 level. If the level value is invalid the result
+  //  will be kMaybe.
+  //
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc1.6E001E\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc1.6E400A\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc1.6E800A\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc1.6EE00A\"'"));
+  EXPECT_EQ(kNot,           CanPlay("'video/mp4; codecs=\"avc1.6EG01E\"'"));
+  EXPECT_EQ(kNot,           CanPlay("'video/mp4; codecs=\"avc1.6E000G\"'"));
+  EXPECT_EQ(kPropMaybe,     CanPlay("'video/mp4; codecs=\"avc1.6EE0FF\"'"));
+
+  //
   //  Other profiles are not known to be supported.
   //
 
@@ -1075,6 +1099,21 @@ IN_PROC_BROWSER_TEST_F(MediaCanPlayTypeTest, CodecSupportTest_Avc3Variants) {
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc3.64E0FF\"'"));
 
   //
+  // High 10-bit Profile (110 == 0x6E).
+  //  The first two digits after the dot must be 6E. The third and fourth digits
+  //  contain constraint_set_flags and must be valid hex. The last two digits
+  //  should be any valid H.264 level. If the level value is invalid the result
+  //  will be kMaybe.
+  //
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc3.6E001E\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc3.6E400A\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc3.6E800A\"'"));
+  EXPECT_EQ(kHi10pProbably, CanPlay("'video/mp4; codecs=\"avc3.6EE00A\"'"));
+  EXPECT_EQ(kNot,           CanPlay("'video/mp4; codecs=\"avc3.6EG01E\"'"));
+  EXPECT_EQ(kNot,           CanPlay("'video/mp4; codecs=\"avc3.6E000G\"'"));
+  EXPECT_EQ(kPropMaybe,     CanPlay("'video/mp4; codecs=\"avc3.6EE0FF\"'"));
+
+  //
   //  Other profiles are not known to be supported.
   //