Prepare to call GMS APIs from WebView

android_webview/native/aw_metrics_service_client_impl.cc

Index: android_webview/native/aw_metrics_service_client_impl.cc
diff --git a/android_webview/browser/aw_metrics_service_client.cc b/android_webview/native/aw_metrics_service_client_impl.cc
similarity index 70%
copy from android_webview/browser/aw_metrics_service_client.cc
copy to android_webview/native/aw_metrics_service_client_impl.cc
index facd0fe4d23ad7b68f0bef109b2b6c6feb1d2139..3668f26c40df9164a5c8d70228017886fd04051c 100644
--- a/android_webview/browser/aw_metrics_service_client.cc
+++ b/android_webview/native/aw_metrics_service_client_impl.cc
@@ -1,10 +1,11 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2017 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 "android_webview/browser/aw_metrics_service_client.h"
+#include "android_webview/native/aw_metrics_service_client_impl.h"
 
 #include "android_webview/common/aw_version_info_values.h"
+#include "android_webview/jni/AwMetricsServiceClient_jni.h"
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/guid.h"
@@ -24,7 +25,7 @@
 
 namespace android_webview {
 
-base::LazyInstance<AwMetricsServiceClient>::Leaky g_lazy_instance_;
+base::LazyInstance<AwMetricsServiceClientImpl>::Leaky g_lazy_instance_;
 
 namespace {
 
@@ -51,13 +52,16 @@ void GetOrCreateGUID(const base::FilePath guid_file_path, std::string* guid) {
     if (base::IsValidGUID(*guid))
       return;
     else
-      LOG(ERROR) << "Found invalid GUID";
+      LOG(ERROR) << "Overwriting invalid GUID";
   }
 
   // We must write a new GUID.
   *guid = base::GenerateGUID();
-  if (!base::WriteFile(guid_file_path, guid->c_str(), guid->size()))
+  if (!base::WriteFile(guid_file_path, guid->c_str(), guid->size())) {
+    // If writing fails, proceed anyway with the new GUID. It won't be persisted
+    // to the next run, but we can still collect metrics with this 1-time GUID.
     LOG(ERROR) << "Failed to write new GUID";
+  }
   return;
 }
 
@@ -69,13 +73,14 @@ AwMetricsServiceClient* AwMetricsServiceClient::GetInstance() {
   return g_lazy_instance_.Pointer();
 }
 
-void AwMetricsServiceClient::Initialize(
+void AwMetricsServiceClientImpl::Initialize(
     PrefService* pref_service,
     net::URLRequestContextGetter* request_context,
     const base::FilePath guid_file_path) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  DCHECK(!is_initialized_);
 
+  DCHECK(pref_service_ == nullptr); // Initialize should only happen once.
+  DCHECK(request_context_ == nullptr);
   pref_service_ = pref_service;
   request_context_ = request_context;
 
@@ -88,13 +93,12 @@ void AwMetricsServiceClient::Initialize(
       content::BrowserThread::FILE,
       FROM_HERE,
       base::Bind(&GetOrCreateGUID, guid_file_path, guid),
-      base::Bind(&AwMetricsServiceClient::InitializeWithGUID,
+      base::Bind(&AwMetricsServiceClientImpl::InitializeWithGUID,
                  base::Unretained(this), base::Owned(guid)));
 }
 
-void AwMetricsServiceClient::InitializeWithGUID(std::string* guid) {
+void AwMetricsServiceClientImpl::InitializeWithGUID(std::string* guid) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  DCHECK(!is_initialized_);
 
   pref_service_->SetString(metrics::prefs::kMetricsClientID, *guid);
 
@@ -128,32 +132,30 @@ void AwMetricsServiceClient::InitializeWithGUID(std::string* guid) {
 
   metrics_service_->InitializeMetricsRecordingState();
 
-  is_initialized_ = true;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_AwMetricsServiceClient_nativeInitialized(env);
+}
 
-  if (IsReportingEnabled())
-    metrics_service_->Start();
+bool AwMetricsServiceClientImpl::IsConsentGiven() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  return is_enabled_;
 }
 
-void AwMetricsServiceClient::SetMetricsEnabled(bool enabled) {
+void AwMetricsServiceClientImpl::SetMetricsEnabled(bool enabled) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
-  // If the client is already initialized, apply the setting immediately.
-  // Otherwise, it will be applied on initialization.
-  if (is_initialized_ && is_enabled_ != enabled) {
-    if (enabled)
-      metrics_service_->Start();
-    else
+  if (is_enabled_ != enabled) {
+    if (enabled) {
+      // TODO(paulmiller): Actually enable metrics when the server-side is ready
+      //metrics_service_->Start();
+    } else {
       metrics_service_->Stop();
+    }
+    is_enabled_ = enabled;
   }
-  is_enabled_ = enabled;
 }
 
-bool AwMetricsServiceClient::IsConsentGiven() {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  return is_enabled_;
-}
-
-metrics::MetricsService* AwMetricsServiceClient::GetMetricsService() {
+metrics::MetricsService* AwMetricsServiceClientImpl::GetMetricsService() {
   return metrics_service_.get();
 }
 
@@ -161,44 +163,44 @@ metrics::MetricsService* AwMetricsServiceClient::GetMetricsService() {
 // checkbox and they share the same client ID (a.k.a. GUID). SetMetricsClientId
 // is intended to provide the ID to Breakpad. In WebView, UMA and Breakpad are
 // independent, so this is a no-op.
+void AwMetricsServiceClientImpl::SetMetricsClientId(
+    const std::string& client_id) {}
 
-void AwMetricsServiceClient::SetMetricsClientId(const std::string& client_id) {}
-
-int32_t AwMetricsServiceClient::GetProduct() {
+int32_t AwMetricsServiceClientImpl::GetProduct() {
   return ::metrics::ChromeUserMetricsExtension::ANDROID_WEBVIEW;
 }
 
-std::string AwMetricsServiceClient::GetApplicationLocale() {
+std::string AwMetricsServiceClientImpl::GetApplicationLocale() {
   return base::i18n::GetConfiguredLocale();
 }
 
-bool AwMetricsServiceClient::GetBrand(std::string* brand_code) {
+bool AwMetricsServiceClientImpl::GetBrand(std::string* brand_code) {
   // WebView doesn't use brand codes.
   return false;
 }
 
-metrics::SystemProfileProto::Channel AwMetricsServiceClient::GetChannel() {
+metrics::SystemProfileProto::Channel AwMetricsServiceClientImpl::GetChannel() {
   // "Channel" means stable, beta, etc. WebView doesn't have channel info yet.
   // TODO(paulmiller) Update this once we have channel info.
   return metrics::SystemProfileProto::CHANNEL_UNKNOWN;
 }
 
-std::string AwMetricsServiceClient::GetVersionString() {
+std::string AwMetricsServiceClientImpl::GetVersionString() {
   return PRODUCT_VERSION;
 }
 
-void AwMetricsServiceClient::InitializeSystemProfileMetrics(
+void AwMetricsServiceClientImpl::InitializeSystemProfileMetrics(
     const base::Closure& done_callback) {
   done_callback.Run();
 }
 
-void AwMetricsServiceClient::CollectFinalMetricsForLog(
+void AwMetricsServiceClientImpl::CollectFinalMetricsForLog(
     const base::Closure& done_callback) {
   done_callback.Run();
 }
 
 std::unique_ptr<metrics::MetricsLogUploader>
-AwMetricsServiceClient::CreateUploader(
+AwMetricsServiceClientImpl::CreateUploader(
     const std::string& server_url,
     const std::string& mime_type,
     const base::Callback<void(int)>& on_upload_complete) {
@@ -207,16 +209,27 @@ AwMetricsServiceClient::CreateUploader(
           request_context_, server_url, mime_type, on_upload_complete));
 }
 
-base::TimeDelta AwMetricsServiceClient::GetStandardUploadInterval() {
+base::TimeDelta AwMetricsServiceClientImpl::GetStandardUploadInterval() {
   return base::TimeDelta::FromMinutes(kUploadIntervalMinutes);
 }
 
-AwMetricsServiceClient::AwMetricsServiceClient()
-    : is_initialized_(false),
-      is_enabled_(false),
+AwMetricsServiceClientImpl::AwMetricsServiceClientImpl()
+    : is_enabled_(false),
       pref_service_(nullptr),
       request_context_(nullptr) {}
 
-AwMetricsServiceClient::~AwMetricsServiceClient() {}
+AwMetricsServiceClientImpl::~AwMetricsServiceClientImpl() {}
+
+// static
+void SetMetricsEnabled(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jclass>& jcaller,
+    jboolean enabled) {
+  g_lazy_instance_.Pointer()->SetMetricsEnabled(enabled);
+}
+
+bool RegisterAwMetricsServiceClient(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
 
 }  // namespace android_webview