Pass icon and icon murmur2 hash to WebApkInstaller when updating WebAPKs.

chrome/browser/android/webapk/webapk_update_manager.cc

Index: chrome/browser/android/webapk/webapk_update_manager.cc
diff --git a/chrome/browser/android/webapk/webapk_update_manager.cc b/chrome/browser/android/webapk/webapk_update_manager.cc
index d6e7dbf21319901f7bde75c1be8650575d27e558..5db259398ff7447aff9e689658168022fb8a0f5c 100644
--- a/chrome/browser/android/webapk/webapk_update_manager.cc
+++ b/chrome/browser/android/webapk/webapk_update_manager.cc
@@ -51,6 +51,7 @@ static void UpdateAsync(JNIEnv* env,
                         const JavaParamRef<jstring>& java_short_name,
                         const JavaParamRef<jstring>& java_icon_url,
                         const JavaParamRef<jobject>& java_icon_bitmap,
+                        jlong java_icon_murmur2_hash,
                         jint java_display_mode,
                         jint java_orientation,
                         jlong java_theme_color,
@@ -93,5 +94,6 @@ static void UpdateAsync(JNIEnv* env,
   installer->UpdateAsync(
       profile,
       base::Bind(&WebApkUpdateManager::OnBuiltWebApk, webapk_package),
+      std::to_string(java_icon_murmur2_hash),

[pkotwicz, 2016/08/19 23:38:17]

I think that using base::Uint64ToString() is preferred. However, I do not know
what the difference between base::Uint64ToString() and std::to_string() is

Note: Once I use webapk_icon_hasher.cc in manifest_upgrade_detector_fetcher.cc,
the hash will be passed as a String to ManifestUpgradeDetector.java

[Xi Han, 2016/08/26 17:54:08]

I move the conversion to Java and pass a string directly to here. Thanks for the
heads up.

       webapk_package, java_webapk_version);
 }