Add HttpHeaders constants for Sec-CH-DPR.

RELNOTES=`net`: Added `HttpHeaders` constants for `Sec-CH-DPR`.
PiperOrigin-RevId: 435172482

Author: java-team-github-bot

android/guava-tests/test/com/google/common/net/HttpHeadersTest.java

@@ -50,8 +50,8 @@ public void testConstantNameMatchesString() throws Exception {
             .build();
     ImmutableSet<String> uppercaseAcronyms =
         ImmutableSet.of(
-            "CH", "ID", "DNT", "DNS", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA", "UID",
-            "URL", "WWW", "XSS");
+            "CH", "ID", "DNT", "DNS", "DPR", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA",
+            "UID", "URL", "WWW", "XSS");
     assertConstantNameMatchesString(HttpHeaders.class, specialCases, uppercaseAcronyms);
   }
 

android/guava/src/com/google/common/net/HttpHeaders.java

@@ -712,6 +712,13 @@ private ReferrerPolicyValues() {}
    * @since NEXT
    */
   public static final String SEC_CH_VIEWPORT_HEIGHT = "Sec-CH-Viewport-Height";
+  /**
+   * The HTTP <a href="https://wicg.github.io/responsive-image-client-hints/#sec-ch-dpr">{@code
+   * Sec-CH-DPR}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String SEC_CH_DPR = "Sec-CH-DPR";
   /**
    * The HTTP <a href="https://w3c.github.io/webappsec-fetch-metadata/">{@code Sec-Fetch-Dest}</a>
    * header field name.

guava-tests/test/com/google/common/net/HttpHeadersTest.java

@@ -50,8 +50,8 @@ public void testConstantNameMatchesString() throws Exception {
             .build();
     ImmutableSet<String> uppercaseAcronyms =
         ImmutableSet.of(
-            "CH", "ID", "DNT", "DNS", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA", "UID",
-            "URL", "WWW", "XSS");
+            "CH", "ID", "DNT", "DNS", "DPR", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA",
+            "UID", "URL", "WWW", "XSS");
     assertConstantNameMatchesString(HttpHeaders.class, specialCases, uppercaseAcronyms);
   }
 

guava/src/com/google/common/net/HttpHeaders.java

@@ -712,6 +712,13 @@ private ReferrerPolicyValues() {}
    * @since NEXT
    */
   public static final String SEC_CH_VIEWPORT_HEIGHT = "Sec-CH-Viewport-Height";
+  /**
+   * The HTTP <a href="https://wicg.github.io/responsive-image-client-hints/#sec-ch-dpr">{@code
+   * Sec-CH-DPR}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String SEC_CH_DPR = "Sec-CH-DPR";
   /**
    * The HTTP <a href="https://w3c.github.io/webappsec-fetch-metadata/">{@code Sec-Fetch-Dest}</a>
    * header field name.