Add global key mappings to dump output.

Example:

    mKeyMapping={
      KEYCODE_FOO=com.example/com.example.KeyReceiver
    }

Change-Id: I03ed8327cebf245ff1e3e5f2aaef3cdec1b94d98
diff --git a/policy/src/com/android/internal/policy/impl/GlobalKeyManager.java b/policy/src/com/android/internal/policy/impl/GlobalKeyManager.java
index 3cf7e82..8c8209f 100644
--- a/policy/src/com/android/internal/policy/impl/GlobalKeyManager.java
+++ b/policy/src/com/android/internal/policy/impl/GlobalKeyManager.java
@@ -30,6 +30,7 @@
 import org.xmlpull.v1.XmlPullParserException;
 
 import java.io.IOException;
+import java.io.PrintWriter;
 
 /**
  * Stores a mapping of global keys.
@@ -123,4 +124,21 @@
             }
         }
     }
+
+    public void dump(String prefix, PrintWriter pw) {
+        final int numKeys = mKeyMapping.size();
+        if (numKeys == 0) {
+            pw.print(prefix); pw.println("mKeyMapping.size=0");
+            return;
+        }
+        pw.print(prefix); pw.println("mKeyMapping={");
+        for (int i = 0; i < numKeys; ++i) {
+            pw.print("  ");
+            pw.print(prefix);
+            pw.print(KeyEvent.keyCodeToString(mKeyMapping.keyAt(i)));
+            pw.print("=");
+            pw.println(mKeyMapping.valueAt(i).flattenToString());
+        }
+        pw.print(prefix); pw.println("}");
+    }
 }
diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 8e68dfc..1aca89a 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -5623,6 +5623,7 @@
         pw.print(prefix); pw.print("mDemoHdmiRotation="); pw.print(mDemoHdmiRotation);
                 pw.print(" mDemoHdmiRotationLock="); pw.println(mDemoHdmiRotationLock);
         pw.print(prefix); pw.print("mUndockedHdmiRotation="); pw.println(mUndockedHdmiRotation);
+        mGlobalKeyManager.dump(prefix, pw);
         mStatusBarController.dump(pw, prefix);
         mNavigationBarController.dump(pw, prefix);
         PolicyControl.dump(prefix, pw);