[chromedriver] Fix clicking on an <area> element broken by a blink change.

chrome/test/chromedriver/element_util.cc

 // Copyright (c) 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 "chrome/test/chromedriver/element_util.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/test/chromedriver/basic_types.h"
+#include "chrome/test/chromedriver/chrome/chrome.h"
 #include "chrome/test/chromedriver/chrome/js.h"
 #include "chrome/test/chromedriver/chrome/status.h"
 #include "chrome/test/chromedriver/chrome/web_view.h"
 #include "chrome/test/chromedriver/session.h"
 #include "third_party/webdriver/atoms.h"
 
 namespace {
 
 const char kElementKey[] = "ELEMENT";
 
@@ skipping 360 matching lines @@
   if (status.IsError())
     return status;
   if (!is_displayed)
     return Status(kElementNotVisible);
 
   WebRect rect;
   status = GetElementRegion(session, web_view, element_id, &rect);
   if (status.IsError())
     return status;
 
+  std::string tmp_element_id = element_id;
+  if (tag_name == "area" && session->chrome->GetBuildNo() < 1799 &&
+      session->chrome->GetBuildNo() >= 1666) {
+    // This is to skip clickable verification for <area>.
+    // The problem is caused by document.ElementFromPoint(crbug.com/338601).
+    // It was introduced by blink r159012, which rolled into chromium r227489.
+    // And it was fixed in blink r165426, which rolled into chromium r245994.
+    // TODO(stgao): Revert after 33 is not supported.
+    tmp_element_id = std::string();
+  }
+
   status = ScrollElementRegionIntoView(
       session, web_view, target_element_id, rect,
-      true /* center */, element_id, location);
+      true /* center */, tmp_element_id, location);
   if (status.IsError())
     return status;
   location->Offset(rect.Width() / 2, rect.Height() / 2);
   return Status(kOk);
 }
 
 Status GetElementEffectiveStyle(
     Session* session,
     WebView* web_view,
     const std::string& element_id,
@@ skipping 225 matching lines @@
     status = ScrollElementRegionIntoViewHelper(
         rit->parent_frame_id, web_view, frame_element_id,
         WebRect(region_offset, region_size),
         center, frame_element_id, &region_offset);
     if (status.IsError())
       return status;
   }
   *location = region_offset;
   return Status(kOk);
 }