Add UMA stats for audio/video containers.

media/base/bit_reader_unittest.cc

Index: media/base/bit_reader_unittest.cc
diff --git a/media/base/bit_reader_unittest.cc b/media/base/bit_reader_unittest.cc
index 48e8c5eac11fce366c5a2325780688f0c880aaff..3dca9c632da77b509e432ff708e38a14d386f712 100644
--- a/media/base/bit_reader_unittest.cc
+++ b/media/base/bit_reader_unittest.cc
@@ -45,4 +45,23 @@ TEST(BitReaderTest, ReadBeyondEndTest) {
   EXPECT_TRUE(reader1.ReadBits(0, &value8));
 }
 
+TEST(BitReaderTest, SkipBitsTest) {
+  uint8 value8;
+  uint8 buffer[] = { 0x0a, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
+  BitReader reader1(buffer, sizeof(buffer));
+
+  EXPECT_TRUE(reader1.SkipBits(2));
+  EXPECT_TRUE(reader1.ReadBits(3, &value8));
+  EXPECT_EQ(value8, 1);
+  EXPECT_TRUE(reader1.SkipBits(11));
+  EXPECT_TRUE(reader1.ReadBits(8, &value8));
+  EXPECT_EQ(value8, 3);
+  EXPECT_TRUE(reader1.SkipBits(76));
+  EXPECT_TRUE(reader1.ReadBits(4, &value8));
+  EXPECT_EQ(value8, 13);
+  EXPECT_FALSE(reader1.SkipBits(100));
+  EXPECT_TRUE(reader1.SkipBits(0));
+  EXPECT_FALSE(reader1.SkipBits(1));
+}
+
 }  // namespace media