Add calls to the server to request WebAPK updates.

chrome/browser/android/webapk/webapk_update_manager.cc

+// Copyright 2016 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 "chrome/browser/android/webapk/webapk_update_manager.h"
+
+#include <jni.h>
+
+#include "base/android/jni_string.h"
+#include "base/bind.h"
+#include "chrome/browser/android/webapk/webapk_installer.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "content/public/browser/browser_context.h"
+#include "content/public/browser/browser_thread.h"
+#include "jni/WebApkUpdateManager_jni.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/android/java_bitmap.h"
+#include "url/gurl.h"
+
+using base::android::JavaParamRef;
+
+// static
+bool WebApkUpdateManager::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+// static
+void WebApkUpdateManager::OnBuiltWebApk(const std::string& webapk_package,
+                                        bool success) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+
+  if (success) {
+    DVLOG(1)
+        << "Sent request to update WebAPK to server. Seems to have worked.";
+  } else {
+    LOG(WARNING) << "Server request to update WebAPK failed.";
+  }
+
+  base::android::ScopedJavaLocalRef<jstring> java_webapk_package =
+      base::android::ConvertUTF8ToJavaString(env, webapk_package);
+  Java_WebApkUpdateManager_onBuiltWebApk(env, success,
+                                         java_webapk_package.obj());
+}
+
+// static JNI method.
+static void UpdateAsync(JNIEnv* env,
+                        const JavaParamRef<jclass>& clazz,
+                        const JavaParamRef<jstring>& java_start_url,
+                        const JavaParamRef<jstring>& java_scope,
+                        const JavaParamRef<jstring>& java_name,
+                        const JavaParamRef<jstring>& java_short_name,
+                        const JavaParamRef<jstring>& java_icon_url,
+                        const JavaParamRef<jobject>& java_icon_bitmap,
+                        jint java_display_mode,
+                        jint java_orientation,
+                        jlong java_theme_color,
+                        jlong java_background_color,
+                        const JavaParamRef<jstring>& java_web_manifest_url,
+                        const JavaParamRef<jstring>& java_webapk_package,
+                        jint java_webapk_version) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);

[pkotwicz, 2016/08/11 22:02:45]

Nit: I don't think that the DCHECK is useful (everything occurs on the UI
thread)

[Xi Han, 2016/08/15 21:38:46]

I would prefer to keep it since ProfileManager::GetLastUsedProfile() has to be
called on UI thread.

+
+  GURL start_url(ConvertJavaStringToUTF8(env, java_start_url));
+  GURL scope(ConvertJavaStringToUTF8(env, java_scope));
+  GURL web_manifest_url(ConvertJavaStringToUTF8(env, java_web_manifest_url));
+  GURL icon_url(ConvertJavaStringToUTF8(env, java_icon_url));
+  ShortcutInfo info(start_url);
+  info.scope = scope;
+  info.name = ConvertJavaStringToUTF16(env, java_name);
+  info.short_name = ConvertJavaStringToUTF16(env, java_short_name);
+  info.display = static_cast<blink::WebDisplayMode>(java_display_mode);
+  info.orientation =
+      static_cast<blink::WebScreenOrientationLockType>(java_orientation);
+  info.theme_color = (long)java_theme_color;
+  info.background_color = (long)java_background_color;
+  info.icon_url = icon_url;
+  info.manifest_url = web_manifest_url;
+
+  gfx::JavaBitmap java_bitmap_lock(java_icon_bitmap);
+  SkBitmap icon_bitmap = gfx::CreateSkBitmapFromJavaBitmap(java_bitmap_lock);
+  icon_bitmap.setImmutable();
+
+  std::string webapk_package;
+  ConvertJavaStringToUTF8(env, java_webapk_package, &webapk_package);
+
+  Profile* profile = ProfileManager::GetLastUsedProfile();
+  if (profile == nullptr) {

[Yaron, 2016/08/12 21:16:17]

nit: you should do early-outs (precontions) first

[Xi Han, 2016/08/15 21:38:45]

Done.

+    NOTREACHED() << "Profile not found.";
+    return;
+  }
+
+  WebApkInstaller* installer = new WebApkInstaller(info, icon_bitmap);
+  installer->UpdateAsync(
+      static_cast<content::BrowserContext*>(profile),

[pkotwicz, 2016/08/11 22:02:45]

Is the static_cast necessary?

[Xi Han, 2016/08/15 21:38:46]

It seems it isn't anymore. I am sure it is needed before. 

+      base::Bind(&WebApkUpdateManager::OnBuiltWebApk, webapk_package),
+      webapk_package, java_webapk_version);
+}