Fix header guard and namespace in android_webview

android_webview/browser/popup_touch_handle_drawable.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/browser/popup_touch_handle_drawable.h"
 
 #include "jni/PopupTouchHandleDrawable_jni.h"
 
 using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
@@ skipping 76 matching lines @@
   return drawable_horizontal_padding_ratio_;
 }
 
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& obj,
                   const jfloat horizontal_padding_ratio) {
   return reinterpret_cast<intptr_t>(
       new PopupTouchHandleDrawable(env, obj, horizontal_padding_ratio));
 }
 
-}  // namespace content
+}  // namespace android_webview