Copy content::ManifestUmaUtil to blink

This is a part of moving manifest implementation to blink.
content::ManifestUmaUtil would be removed after completing to move
the manifest implementation from content to blink.

Bug: 704441
Change-Id: I5ae55cc02c01c3b3f30268bb0da8dadc83b84f0c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1524818Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Miyoung Shin <myid.shin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642371}

third_party/blink/renderer/modules/manifest/BUILD.gn

@@ -8,5 +8,7 @@ blink_modules_sources("manifest") {
   sources = [
     "image_resource_type_converters.cc",
     "image_resource_type_converters.h",
+    "manifest_uma_util.cc",
+    "manifest_uma_util.h",
   ]
 }

third_party/blink/renderer/modules/manifest/manifest_uma_util.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "third_party/blink/renderer/modules/manifest/manifest_uma_util.h"
+
+#include "base/metrics/histogram_macros.h"
+#include "third_party/blink/public/common/manifest/manifest.h"
+
+namespace blink {
+
+namespace {
+
+static const char kUMANameParseSuccess[] = "Manifest.ParseSuccess";
+static const char kUMANameFetchResult[] = "Manifest.FetchResult";
+
+// Enum for UMA purposes, make sure you update histograms.xml if you add new
+// result types. Never delete or reorder an entry; only add new entries
+// immediately before MANIFEST_FETCH_RESULT_TYPE_COUNT.
+enum ManifestFetchResultType {
+  MANIFEST_FETCH_SUCCESS = 0,
+  MANIFEST_FETCH_ERROR_EMPTY_URL = 1,
+  MANIFEST_FETCH_ERROR_UNSPECIFIED = 2,
+  MANIFEST_FETCH_ERROR_FROM_UNIQUE_ORIGIN = 3,
+
+  // Must stay at the end.
+  MANIFEST_FETCH_RESULT_TYPE_COUNT
+};
+
+}  // anonymous namespace
+
+void ManifestUmaUtil::ParseSucceeded(const Manifest& manifest) {
+  UMA_HISTOGRAM_BOOLEAN(kUMANameParseSuccess, true);
+  UMA_HISTOGRAM_BOOLEAN("Manifest.IsEmpty", manifest.IsEmpty());
+  if (manifest.IsEmpty())
+    return;
+
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.name", !manifest.name.is_null());
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.short_name",
+                        !manifest.short_name.is_null());
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.start_url",
+                        !manifest.start_url.is_empty());
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.display",
+                        manifest.display != kWebDisplayModeUndefined);
+  UMA_HISTOGRAM_BOOLEAN(
+      "Manifest.HasProperty.orientation",
+      manifest.orientation != kWebScreenOrientationLockDefault);
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.icons", !manifest.icons.empty());
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.share_target",
+                        manifest.share_target.has_value());
+  UMA_HISTOGRAM_BOOLEAN("Manifest.HasProperty.gcm_sender_id",
+                        !manifest.gcm_sender_id.is_null());
+}
+
+void ManifestUmaUtil::ParseFailed() {
+  UMA_HISTOGRAM_BOOLEAN(kUMANameParseSuccess, false);
+}
+
+void ManifestUmaUtil::FetchSucceeded() {
+  UMA_HISTOGRAM_ENUMERATION(kUMANameFetchResult, MANIFEST_FETCH_SUCCESS,
+                            MANIFEST_FETCH_RESULT_TYPE_COUNT);
+}
+
+void ManifestUmaUtil::FetchFailed(FetchFailureReason reason) {
+  ManifestFetchResultType fetch_result_type = MANIFEST_FETCH_RESULT_TYPE_COUNT;
+  switch (reason) {
+    case FETCH_EMPTY_URL:
+      fetch_result_type = MANIFEST_FETCH_ERROR_EMPTY_URL;
+      break;
+    case FETCH_FROM_UNIQUE_ORIGIN:
+      fetch_result_type = MANIFEST_FETCH_ERROR_FROM_UNIQUE_ORIGIN;
+      break;
+    case FETCH_UNSPECIFIED_REASON:
+      fetch_result_type = MANIFEST_FETCH_ERROR_UNSPECIFIED;
+      break;
+  }
+  DCHECK_NE(fetch_result_type, MANIFEST_FETCH_RESULT_TYPE_COUNT);
+
+  UMA_HISTOGRAM_ENUMERATION(kUMANameFetchResult, fetch_result_type,
+                            MANIFEST_FETCH_RESULT_TYPE_COUNT);
+}
+
+}  // namespace blink

third_party/blink/renderer/modules/manifest/manifest_uma_util.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MANIFEST_MANIFEST_UMA_UTIL_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_MANIFEST_MANIFEST_UMA_UTIL_H_
+
+namespace blink {
+
+struct Manifest;
+
+class ManifestUmaUtil {
+ public:
+  enum FetchFailureReason {
+    FETCH_EMPTY_URL = 0,
+    FETCH_FROM_UNIQUE_ORIGIN,
+    FETCH_UNSPECIFIED_REASON
+  };
+
+  // Record that the Manifest was successfully parsed. If it is an empty
+  // Manifest, it will recorded as so and nothing will happen. Otherwise, the
+  // presence of each properties will be recorded.
+  static void ParseSucceeded(const Manifest& manifest);
+
+  // Record that the Manifest parsing failed.
+  static void ParseFailed();
+
+  // Record that the Manifest fetching succeeded.
+  static void FetchSucceeded();
+
+  // Record that the Manifest fetching failed and takes the |reason| why it
+  // failed.
+  static void FetchFailed(FetchFailureReason reason);
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MANIFEST_MANIFEST_UMA_UTIL_H_