Remove some occurrences of gendered pronouns

ISSUE: #7565
PiperOrigin-RevId: 321367089

library/core/src/test/java/com/google/android/exoplayer2/text/ttml/TtmlDecoderTest.java

@@ -304,16 +304,16 @@ public final class TtmlDecoderTest {
     // assertEquals(1f, cue.size);
     // assertEquals(1f, cue.size);
 
 
     cue = getOnlyCueAtTimeUs(subtitle, 21_000_000);
     cue = getOnlyCueAtTimeUs(subtitle, 21_000_000);
-    assertThat(cue.text.toString()).isEqualTo("She first said this");
+    assertThat(cue.text.toString()).isEqualTo("They first said this");
     assertThat(cue.position).isEqualTo(45f / 100f);
     assertThat(cue.position).isEqualTo(45f / 100f);
     assertThat(cue.line).isEqualTo(45f / 100f);
     assertThat(cue.line).isEqualTo(45f / 100f);
     assertThat(cue.size).isEqualTo(35f / 100f);
     assertThat(cue.size).isEqualTo(35f / 100f);
 
 
     cue = getOnlyCueAtTimeUs(subtitle, 25_000_000);
     cue = getOnlyCueAtTimeUs(subtitle, 25_000_000);
-    assertThat(cue.text.toString()).isEqualTo("She first said this\nThen this");
+    assertThat(cue.text.toString()).isEqualTo("They first said this\nThen this");
 
 
     cue = getOnlyCueAtTimeUs(subtitle, 29_000_000);
     cue = getOnlyCueAtTimeUs(subtitle, 29_000_000);
-    assertThat(cue.text.toString()).isEqualTo("She first said this\nThen this\nFinally this");
+    assertThat(cue.text.toString()).isEqualTo("They first said this\nThen this\nFinally this");
     assertThat(cue.position).isEqualTo(45f / 100f);
     assertThat(cue.position).isEqualTo(45f / 100f);
     assertThat(cue.line).isEqualTo(45f / 100f);
     assertThat(cue.line).isEqualTo(45f / 100f);
   }
   }

testdata/src/test/assets/ttml/multiple_regions.xml

@@ -21,7 +21,7 @@
             <p begin="1s" end="4s" region="region4">amet</p>
             <p begin="1s" end="4s" region="region4">amet</p>
         </div>
         </div>
         <div region="ultimate">
         <div region="ultimate">
-            <p begin="21s" end="34s">She first said this</p>
+            <p begin="21s" end="34s">They first said this</p>
             <p begin="25s" end="34s">Then this</p>
             <p begin="25s" end="34s">Then this</p>
             <p begin="29s" end="34s">Finally this</p>
             <p begin="29s" end="34s">Finally this</p>
         </div>
         </div>