DevTools socket tunnel.

chrome/android/shell/java/AndroidManifest.xml

Index: chrome/android/shell/java/AndroidManifest.xml
diff --git a/chrome/android/shell/java/AndroidManifest.xml b/chrome/android/shell/java/AndroidManifest.xml
index 84ca1957cb4701431ac2831bfa9efab1bf5918c8..79645fcf5629e56fa81ec86a9600994fe5b79142 100644
--- a/chrome/android/shell/java/AndroidManifest.xml
+++ b/chrome/android/shell/java/AndroidManifest.xml
@@ -32,6 +32,11 @@
     <uses-permission android:name="org.chromium.chrome.shell.permission.C2D_MESSAGE" />
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
 
+    <permission android:name="org.chromium.chrome.shell.permission.DEBUG"
+                android:label="Debug web pages"

[mnaganov (inactive), 2014/09/12 13:37:29]

Does this need a clarification, like "from external apps"?

[SeRya, 2014/09/15 15:20:00]

Theoretically this label may be shown when user installs an external
application. It will be among requested permissions (not sure it's the case for
signature protected permissions). So text like "Debug web pages in Chrome Shell"
would be more appropriate. In reality it's hardly someone needs to publish an
application with what permission. When you install an app through ADB the
message is not shown.

+                android:permissionGroup="android.permission-group.DEVELOPMENT_TOOLS"
+                android:protectionLevel="signature" />
+
     <application android:name="org.chromium.chrome.shell.ChromeShellApplication"
             android:icon="@mipmap/app_icon"
             android:label="Chrome Shell">