Merge WebKit at r75993: Update Makefiles

Update BrowserPlugin makefile post WebKit source code
move.

Change-Id: I5c8e1f4db80fc066171e6ddd74b0a5e61beadb3d
diff --git a/tests/BrowserTestPlugin/jni/Android.mk b/tests/BrowserTestPlugin/jni/Android.mk
index 2956c61..d641dad 100644
--- a/tests/BrowserTestPlugin/jni/Android.mk
+++ b/tests/BrowserTestPlugin/jni/Android.mk
@@ -40,7 +40,7 @@
 	$(WEBCORE_PATH)/bridge \
 	$(WEBCORE_PATH)/plugins \
 	$(WEBCORE_PATH)/platform/android/JavaVM \
-	external/webkit/WebKit/android/plugins
+	external/webkit/Source/WebKit/android/plugins
 
 LOCAL_CFLAGS += -fvisibility=hidden