Fix the scroll and zoom

content/browser/web_contents/web_contents_android.cc

 // Copyright 2013 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 "content/browser/web_contents/web_contents_android.h"
 
 #include <stdint.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 52 matching lines @@
   JNIEnv* env = base::android::AttachCurrentThread();
   std::string json;
   base::JSONWriter::Write(*result, &json);
   ScopedJavaLocalRef<jstring> j_json = ConvertUTF8ToJavaString(env, json);
   Java_WebContentsImpl_onEvaluateJavaScriptResult(
       env, j_json.obj(), callback.obj());
 }
 
 struct AccessibilitySnapshotParams {
   AccessibilitySnapshotParams(float scale,
-                              float horizontal_scroll,
-                              float vertical_offset)
+                              float vertical_offset,
+                              float horizontal_scroll)
       : scale_factor(scale),
+        y_offset(vertical_offset),
         x_scroll(horizontal_scroll),
-        y_offset(vertical_offset),
         has_tree_data(false),
         should_select_leaf_nodes(false) {}
 
   float scale_factor;
+  float y_offset;
   float x_scroll;
-  float y_offset;
   bool has_tree_data;
   // The current text selection within this tree, if any, expressed as the
   // node ID and character offset of the anchor (selection start) and focus
   // (selection end).
   int32_t sel_anchor_object_id;
   int32_t sel_anchor_offset;
   int32_t sel_focus_object_id;
   int32_t sel_focus_offset;
   // if the flag is true, mark the leaf node as selected.
   bool should_select_leaf_nodes;
@@ skipping 598 matching lines @@
   if (response == READBACK_SUCCESS)
     java_bitmap = gfx::ConvertToJavaBitmap(&bitmap);
   Java_WebContentsImpl_onGetContentBitmapFinished(env,
                                                   obj->obj(),
                                                   callback->obj(),
                                                   java_bitmap.obj(),
                                                   response);
 }
 
 }  // namespace content