Add `HttpHeaders` constants for Accept-CH, Client-CH, Sec-CH-UA-Reduced, Device-Memory, Downlink, ECT, RTT, Save-Data, Viewport-Width, Width, and Permissions-Policy.

RELNOTES=n/a
PiperOrigin-RevId: 398305066

4 files changed, 170 insertions, 4 deletions

diff --git a/android/guava-tests/test/com/google/common/net/HttpHeadersTest.java b/android/guava-tests/test/com/google/common/net/HttpHeadersTest.java
index 9927e6b94..5361b3fce 100644
--- a/android/guava-tests/test/com/google/common/net/HttpHeadersTest.java
+++ b/android/guava-tests/test/com/google/common/net/HttpHeadersTest.java
@@ -50,8 +50,8 @@ public class HttpHeadersTest extends TestCase {
             .build();
     ImmutableSet<String> uppercaseAcronyms =
         ImmutableSet.of(
-            "CH", "ID", "DNT", "DNS", "HTTP2", "IP", "MD5", "P3P", "TE", "UA", "UID", "URL", "WWW",
-            "XSS");
+            "CH", "ID", "DNT", "DNS", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA", "UID",
+            "URL", "WWW", "XSS");
     assertConstantNameMatchesString(HttpHeaders.class, specialCases, uppercaseAcronyms);
   }
 
diff --git a/android/guava/src/com/google/common/net/HttpHeaders.java b/android/guava/src/com/google/common/net/HttpHeaders.java
index 64469b47a..2363a1890 100644
--- a/android/guava/src/com/google/common/net/HttpHeaders.java
+++ b/android/guava/src/com/google/common/net/HttpHeaders.java
@@ -534,6 +534,72 @@ public final class HttpHeaders {
 
   /**
    * The HTTP <a
+   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Device-Memory">{@code
+   * Device-Memory}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String DEVICE_MEMORY = "Device-Memory";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Downlink">{@code
+   * Downlink}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String DOWNLINK = "Downlink";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ECT">{@code
+   * ECT}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String ECT = "ECT";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/RTT">{@code
+   * RTT}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String RTT = "RTT";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Save-Data">{@code
+   * Save-Data}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String SAVE_DATA = "Save-Data";
+
+  /**
+   * The HTTP <a
+   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Viewport-Width">{@code
+   * Viewport-Width}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String VIEWPORT_WIDTH = "Viewport-Width";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Width">{@code
+   * Width}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String WIDTH = "Width";
+
+  /**
+   * The HTTP <a href="https://www.w3.org/TR/permissions-policy-1/">{@code Permissions-Policy}</a>
+   * header field name.
+   *
+   * @since NEXT
+   */
+  public static final String PERMISSIONS_POLICY = "Permissions-Policy";
+
+  /**
+   * The HTTP <a
    * href="https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-color-scheme">{@code
    * Sec-CH-Prefers-Color-Scheme}</a> header field name.
    *
@@ -544,6 +610,23 @@ public final class HttpHeaders {
   public static final String SEC_CH_PREFERS_COLOR_SCHEME = "Sec-CH-Prefers-Color-Scheme";
 
   /**
+   * The HTTP <a
+   * href="https://www.rfc-editor.org/rfc/rfc8942#name-the-accept-ch-response-head">{@code
+   * Accept-CH}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String ACCEPT_CH = "Accept-CH";
+  /**
+   * The HTTP <a
+   * href="https://datatracker.ietf.org/doc/html/draft-davidben-http-client-hint-reliability-03.txt#section-3">{@code
+   * Critical-CH}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String CRITICAL_CH = "Critical-CH";
+
+  /**
    * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua">{@code Sec-CH-UA}</a>
    * header field name.
    *
diff --git a/guava-tests/test/com/google/common/net/HttpHeadersTest.java b/guava-tests/test/com/google/common/net/HttpHeadersTest.java
index 9927e6b94..5361b3fce 100644
--- a/guava-tests/test/com/google/common/net/HttpHeadersTest.java
+++ b/guava-tests/test/com/google/common/net/HttpHeadersTest.java
@@ -50,8 +50,8 @@ public class HttpHeadersTest extends TestCase {
             .build();
     ImmutableSet<String> uppercaseAcronyms =
         ImmutableSet.of(
-            "CH", "ID", "DNT", "DNS", "HTTP2", "IP", "MD5", "P3P", "TE", "UA", "UID", "URL", "WWW",
-            "XSS");
+            "CH", "ID", "DNT", "DNS", "ECT", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE", "UA", "UID",
+            "URL", "WWW", "XSS");
     assertConstantNameMatchesString(HttpHeaders.class, specialCases, uppercaseAcronyms);
   }
 
diff --git a/guava/src/com/google/common/net/HttpHeaders.java b/guava/src/com/google/common/net/HttpHeaders.java
index 64469b47a..2363a1890 100644
--- a/guava/src/com/google/common/net/HttpHeaders.java
+++ b/guava/src/com/google/common/net/HttpHeaders.java
@@ -534,6 +534,72 @@ public final class HttpHeaders {
 
   /**
    * The HTTP <a
+   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Device-Memory">{@code
+   * Device-Memory}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String DEVICE_MEMORY = "Device-Memory";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Downlink">{@code
+   * Downlink}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String DOWNLINK = "Downlink";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ECT">{@code
+   * ECT}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String ECT = "ECT";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/RTT">{@code
+   * RTT}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String RTT = "RTT";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Save-Data">{@code
+   * Save-Data}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String SAVE_DATA = "Save-Data";
+
+  /**
+   * The HTTP <a
+   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Viewport-Width">{@code
+   * Viewport-Width}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String VIEWPORT_WIDTH = "Viewport-Width";
+
+  /**
+   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Width">{@code
+   * Width}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String WIDTH = "Width";
+
+  /**
+   * The HTTP <a href="https://www.w3.org/TR/permissions-policy-1/">{@code Permissions-Policy}</a>
+   * header field name.
+   *
+   * @since NEXT
+   */
+  public static final String PERMISSIONS_POLICY = "Permissions-Policy";
+
+  /**
+   * The HTTP <a
    * href="https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-color-scheme">{@code
    * Sec-CH-Prefers-Color-Scheme}</a> header field name.
    *
@@ -544,6 +610,23 @@ public final class HttpHeaders {
   public static final String SEC_CH_PREFERS_COLOR_SCHEME = "Sec-CH-Prefers-Color-Scheme";
 
   /**
+   * The HTTP <a
+   * href="https://www.rfc-editor.org/rfc/rfc8942#name-the-accept-ch-response-head">{@code
+   * Accept-CH}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String ACCEPT_CH = "Accept-CH";
+  /**
+   * The HTTP <a
+   * href="https://datatracker.ietf.org/doc/html/draft-davidben-http-client-hint-reliability-03.txt#section-3">{@code
+   * Critical-CH}</a> header field name.
+   *
+   * @since NEXT
+   */
+  public static final String CRITICAL_CH = "Critical-CH";
+
+  /**
    * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua">{@code Sec-CH-UA}</a>
    * header field name.
    *