Adding PREFETCH_METADATA capability to Feed requests.

Bug: b/166660507
Change-Id: If94ef5636812508796fd66fa3b5ad58beda439ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2390945
Commit-Queue: Jonathan Freed <freedjm@chromium.org>
Reviewed-by: Dan H <harringtond@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803932}

components/feed/core/proto/v2/wire/capability.proto

@@ -9,7 +9,6 @@ package feedwire;
 option optimize_for = LITE_RUNTIME;
 
 // Feature capability of either the client or the server.
-// Next ID: 20
 enum Capability {
   UNKNOWN_CAPABILITY = 0;
   // The client is capable of a basic UI.
@@ -28,4 +27,5 @@ enum Capability {
   REQUEST_SCHEDULE = 20;
   OPEN_IN_TAB = 27;
   DOWNLOAD_LINK = 28;
+  PREFETCH_METADATA = 43;
 }

components/feed/core/v2/proto_util.cc

@@ -118,6 +118,7 @@ feedwire::Request CreateFeedQueryRequest(
   feedwire::FeedRequest& feed_request = *request.mutable_feed_request();
   feed_request.add_client_capability(feedwire::Capability::BASE_UI);
   feed_request.add_client_capability(feedwire::Capability::CARD_MENU);
+  feed_request.add_client_capability(feedwire::Capability::PREFETCH_METADATA);
   for (auto capability : GetFeedConfig().experimental_capabilities)
     feed_request.add_client_capability(capability);
 

components/feed/core/v2/proto_util_unittest.cc

@@ -62,7 +62,7 @@ TEST(ProtoUtilTest, DefaultCapabilities) {
                                     /*consistency_token=*/std::string())
           .feed_request();
 
-  ASSERT_EQ(9, request.client_capability_size());
+  ASSERT_EQ(10, request.client_capability_size());
   EXPECT_TRUE(HasCapability(request, feedwire::Capability::BASE_UI));
   EXPECT_TRUE(HasCapability(request, feedwire::Capability::REQUEST_SCHEDULE));
   EXPECT_TRUE(HasCapability(request, feedwire::Capability::OPEN_IN_TAB));
@@ -73,6 +73,7 @@ TEST(ProtoUtilTest, DefaultCapabilities) {
   EXPECT_TRUE(HasCapability(request, feedwire::Capability::UI_THEME_V2));
   EXPECT_TRUE(
       HasCapability(request, feedwire::Capability::UNDO_FOR_DISMISS_COMMAND));
+  EXPECT_TRUE(HasCapability(request, feedwire::Capability::PREFETCH_METADATA));
 }
 
 TEST(ProtoUtilTest, DisableCapabilitiesWithFinch) {
@@ -88,7 +89,7 @@ TEST(ProtoUtilTest, DisableCapabilitiesWithFinch) {
                                     /*consistency_token=*/std::string())
           .feed_request();
 
-  ASSERT_EQ(8, request.client_capability_size());
+  ASSERT_EQ(9, request.client_capability_size());
 
   // Optional capabilities can be disabled.
   EXPECT_FALSE(HasCapability(request, feedwire::Capability::INFINITE_FEED));
@@ -104,6 +105,7 @@ TEST(ProtoUtilTest, DisableCapabilitiesWithFinch) {
   EXPECT_TRUE(HasCapability(request, feedwire::Capability::UI_THEME_V2));
   EXPECT_TRUE(
       HasCapability(request, feedwire::Capability::UNDO_FOR_DISMISS_COMMAND));
+  EXPECT_TRUE(HasCapability(request, feedwire::Capability::PREFETCH_METADATA));
 }
 
 }  // namespace