Updated to arc-runtime-44.4410.366.0
diff --git a/src/build/generate_build_prop.py b/src/build/generate_build_prop.py
index 286d8fa..a92296f 100755
--- a/src/build/generate_build_prop.py
+++ b/src/build/generate_build_prop.py
@@ -13,6 +13,7 @@
 
 import os
 import subprocess
+import sys
 
 import build_common
 import toolchain
@@ -21,6 +22,11 @@
 OPTIONS.parse_configure_file()
 
 
+# Provide an option to generate different build properties for running non-CWS
+# apps, such as sideloaded or via ARC Welder.  This allows WebView (Chromium) to
+# send different User-Agent.
+dev_mode = '--dev' in sys.argv
+
 # Environment variables below are sorted alphabetically.
 
 # version_defaults.mk sets this if there is no BUILD_ID set.
@@ -58,6 +64,8 @@
 os.environ['PRODUCT_DEFAULT_WIFI_CHANNELS'] = ''
 os.environ['PRODUCT_MANUFACTURER'] = 'chromium'
 os.environ['PRODUCT_MODEL'] = 'App Runtime for Chrome'
+if dev_mode:
+  os.environ['PRODUCT_MODEL'] += ' Dev'
 os.environ['PRODUCT_NAME'] = 'arc'
 
 os.environ['TARGET_AAPT_CHARACTERISTICS'] = 'default'
diff --git a/src/build/whitespace_file.txt b/src/build/whitespace_file.txt
index 0c3d00a..ed78a50 100644
--- a/src/build/whitespace_file.txt
+++ b/src/build/whitespace_file.txt
@@ -110,3 +110,5 @@
 testing bots after m3 -> m7a masters move.
 
 kick apk builder bot.
+
+Will it blend?
diff --git a/src/common/plugin_interface.h b/src/common/plugin_interface.h
index cd424e1..eea8d08 100644
--- a/src/common/plugin_interface.h
+++ b/src/common/plugin_interface.h
@@ -455,6 +455,7 @@
   virtual void HistogramBoolean(const std::string& name, bool value) = 0;
   virtual void HistogramEnumeration(const std::string& name,
                                     int value, int bounds) = 0;
+  virtual bool IsAppInstalledFromWebStore() const = 0;
 
   // Start shut down of environment.
   virtual void ShutDown() = 0;