Storage Service: Add use counters for Cache Storage read/write.

Bug: 1000932
Change-Id: Ia6ae52ff439c1d7e8d759e6f083fb04d08663b1f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1786616
Commit-Queue: Staphany Park <staphany@chromium.org>
Auto-Submit: Staphany Park <staphany@chromium.org>
Reviewed-by: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#693871}

third_party/blink/public/mojom/web_feature/web_feature.mojom

@@ -2401,6 +2401,8 @@ enum WebFeature {
   kWebSocketStreamConstructor = 3018,
   kDOMStorageRead = 3019,
   kDOMStorageWrite = 3020,
+  kCacheStorageRead = 3021,
+  kCacheStorageWrite = 3022,
 
   // Add new features immediately above this line. Don't change assigned
   // numbers of any item, and don't reuse removed slots.

third_party/blink/renderer/modules/cache_storage/cache.idl

@@ -8,11 +8,31 @@
     SecureContext,
     Exposed=(Window,Worker)
 ] interface Cache {
-    [CallWith=ScriptState, RaisesException] Promise<any> match(RequestInfo request, optional CacheQueryOptions options);
-    [CallWith=ScriptState, RaisesException] Promise<sequence<Response>> matchAll(optional RequestInfo request, optional CacheQueryOptions options);
-    [CallWith=ScriptState, RaisesException] Promise<void> add(RequestInfo request);
-    [CallWith=ScriptState, RaisesException] Promise<void> addAll(sequence<RequestInfo> requests);
-    [CallWith=ScriptState, RaisesException] Promise<void> put(RequestInfo request, Response response);
-    [CallWith=ScriptState, ImplementedAs=Delete, RaisesException] Promise<boolean> delete(RequestInfo request, optional CacheQueryOptions options);
-    [CallWith=ScriptState, RaisesException] Promise<sequence<Request>> keys(optional RequestInfo request, optional CacheQueryOptions options);
+    [CallWith=ScriptState, MeasureAs=CacheStorageRead, RaisesException]
+    Promise<any> match(RequestInfo request, optional CacheQueryOptions options);
+
+    [CallWith=ScriptState, MeasureAs=CacheStorageRead, RaisesException]
+    Promise<sequence<Response>> matchAll(optional RequestInfo request,
+                                         optional CacheQueryOptions options);
+
+    [CallWith=ScriptState, MeasureAs=CacheStorageWrite, RaisesException]
+    Promise<void> add(RequestInfo request);
+
+    [CallWith=ScriptState, MeasureAs=CacheStorageWrite, RaisesException]
+    Promise<void> addAll(sequence<RequestInfo> requests);
+
+    [CallWith=ScriptState, MeasureAs=CacheStorageWrite, RaisesException]
+    Promise<void> put(RequestInfo request, Response response);
+
+    [
+      CallWith=ScriptState,
+      ImplementedAs=Delete,
+      MeasureAs=CacheStorageWrite,
+      RaisesException
+    ] Promise<boolean> delete(RequestInfo request,
+                              optional CacheQueryOptions options);
+
+    [CallWith=ScriptState, MeasureAs=CacheStorageRead, RaisesException]
+    Promise<sequence<Request>> keys(optional RequestInfo request,
+                                    optional CacheQueryOptions options);
 };

third_party/blink/renderer/modules/cache_storage/cache_storage.idl

@@ -8,9 +8,18 @@
     SecureContext,
     Exposed=(Window,Worker)
 ] interface CacheStorage {
-  [CallWith=ScriptState, RaisesException] Promise<any> match(RequestInfo request, optional MultiCacheQueryOptions options);
-  [CallWith=ScriptState] Promise<boolean> has(DOMString cacheName);
+  [CallWith=ScriptState, MeasureAs=CacheStorageRead, RaisesException]
+  Promise<any> match(RequestInfo request,
+                     optional MultiCacheQueryOptions options);
+
+  [CallWith=ScriptState, MeasureAs=CacheStorageRead]
+  Promise<boolean> has(DOMString cacheName);
+
   [CallWith=ScriptState] Promise<Cache> open(DOMString cacheName);
-  [CallWith=ScriptState, ImplementedAs=Delete] Promise<boolean> delete(DOMString cacheName);
-  [CallWith=ScriptState] Promise<sequence<DOMString>> keys();
+
+  [CallWith=ScriptState, MeasureAs=CacheStorageWrite, ImplementedAs=Delete]
+  Promise<boolean> delete(DOMString cacheName);
+
+  [CallWith=ScriptState, MeasureAs=CacheStorageRead]
+  Promise<sequence<DOMString>> keys();
 };

tools/metrics/histograms/enums.xml

@@ -24587,6 +24587,8 @@ Called by update_net_error_codes.py.-->
   <int value="3018" label="WebSocketStreamConstructor"/>
   <int value="3019" label="DOMStorageRead"/>
   <int value="3020" label="DOMStorageWrite"/>
+  <int value="3021" label="CacheStorageRead"/>
+  <int value="3022" label="CacheStorageWrite"/>
 </enum>
 
 <enum name="FeaturePolicyAllowlistType">