chore: update protobuf v3.15.3 (#551)

This release makes --experimental_allow_proto3_optional no longer necessary.

PiperOrigin-RevId: 359781040

Source-Author: Google APIs <noreply@google.com>
Source-Date: Fri Feb 26 09:59:49 2021 -0800
Source-Repo: googleapis/googleapis
Source-Sha: f6dd7e47620566925a4b3f1ce029e74e1b2f2516
Source-Link: googleapis/googleapis@f6dd7e4

Author: yoshi-automation

java-pubsub/proto-google-cloud-pubsub-v1/src/main/java/com/google/pubsub/v1/SeekRequest.java

@@ -313,6 +313,22 @@ public com.google.protobuf.TimestampOrBuilder getTimeOrBuilder() {
   }
 
   public static final int SNAPSHOT_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * <pre>
+   * The snapshot to seek to. The snapshot's topic must be the same as that of
+   * the provided subscription.
+   * Format is `projects/{project}/snapshots/{snap}`.
+   * </pre>
+   *
+   * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return Whether the snapshot field is set.
+   */
+  public boolean hasSnapshot() {
+    return targetCase_ == 3;
+  }
   /**
    *
    *
@@ -1177,6 +1193,23 @@ public com.google.protobuf.TimestampOrBuilder getTimeOrBuilder() {
       return timeBuilder_;
     }
 
+    /**
+     *
+     *
+     * <pre>
+     * The snapshot to seek to. The snapshot's topic must be the same as that of
+     * the provided subscription.
+     * Format is `projects/{project}/snapshots/{snap}`.
+     * </pre>
+     *
+     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return Whether the snapshot field is set.
+     */
+    @java.lang.Override
+    public boolean hasSnapshot() {
+      return targetCase_ == 3;
+    }
     /**
      *
      *

java-pubsub/proto-google-cloud-pubsub-v1/src/main/java/com/google/pubsub/v1/SeekRequestOrBuilder.java

@@ -117,6 +117,20 @@ public interface SeekRequestOrBuilder
    */
   com.google.protobuf.TimestampOrBuilder getTimeOrBuilder();
 
+  /**
+   *
+   *
+   * <pre>
+   * The snapshot to seek to. The snapshot's topic must be the same as that of
+   * the provided subscription.
+   * Format is `projects/{project}/snapshots/{snap}`.
+   * </pre>
+   *
+   * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return Whether the snapshot field is set.
+   */
+  boolean hasSnapshot();
   /**
    *
    *

java-pubsub/proto-google-cloud-pubsub-v1/src/main/java/com/google/pubsub/v1/ValidateMessageRequest.java

@@ -250,6 +250,21 @@ public com.google.protobuf.ByteString getParentBytes() {
   }
 
   public static final int NAME_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * Name of the schema against which to validate.
+   * Format is `projects/{project}/schemas/{schema}`.
+   * </pre>
+   *
+   * <code>string name = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return Whether the name field is set.
+   */
+  public boolean hasName() {
+    return schemaSpecCase_ == 2;
+  }
   /**
    *
    *
@@ -960,6 +975,22 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    /**
+     *
+     *
+     * <pre>
+     * Name of the schema against which to validate.
+     * Format is `projects/{project}/schemas/{schema}`.
+     * </pre>
+     *
+     * <code>string name = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return Whether the name field is set.
+     */
+    @java.lang.Override
+    public boolean hasName() {
+      return schemaSpecCase_ == 2;
+    }
     /**
      *
      *

java-pubsub/proto-google-cloud-pubsub-v1/src/main/java/com/google/pubsub/v1/ValidateMessageRequestOrBuilder.java

@@ -54,6 +54,19 @@ public interface ValidateMessageRequestOrBuilder
    */
   com.google.protobuf.ByteString getParentBytes();
 
+  /**
+   *
+   *
+   * <pre>
+   * Name of the schema against which to validate.
+   * Format is `projects/{project}/schemas/{schema}`.
+   * </pre>
+   *
+   * <code>string name = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return Whether the name field is set.
+   */
+  boolean hasName();
   /**
    *
    *

java-pubsub/synth.metadata

@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-pubsub.git",
-        "sha": "3c478ec68afb8426ba5e670c563a7a925e431d85"
+        "sha": "ed6b798c3908dfffe67a160d0cf38ef775081834"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "41d8fbfec9d4bc4a8859f78185713950913b4bf3",
-        "internalRef": "348038736"
+        "sha": "f6dd7e47620566925a4b3f1ce029e74e1b2f2516",
+        "internalRef": "359781040"
       }
     },
     {
@@ -49,7 +49,6 @@
     ".github/workflows/approve-readme.yaml",
     ".github/workflows/auto-release.yaml",
     ".github/workflows/ci.yaml",
-    ".github/workflows/samples.yaml",
     ".kokoro/build.bat",
     ".kokoro/build.sh",
     ".kokoro/coerce_logs.sh",