Fix computation of Automation API location offsets in WebViews.

chrome/browser/extensions/api/automation/automation_apitest.cc

 // Copyright 2014 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 "base/files/file_path.h"
 #include "base/location.h"
 #include "base/path_service.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 113 matching lines @@
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "location.html"))
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, Location2) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "location2.html"))
       << message_;
 }
 
+IN_PROC_BROWSER_TEST_F(AutomationApiTest, LocationInWebView) {
+  StartEmbeddedTestServer();
+  ASSERT_TRUE(RunPlatformAppTest("automation/tests/webview")) << message_;
+}
+
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, BoundsForRange) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs",
                                   "bounds_for_range.html"))
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, LineStartOffsets) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(
@@ skipping 130 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, DocumentSelection) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(
       RunExtensionSubtest("automation/tests/tabs", "document_selection.html"))
       << message_;
 }
 
 }  // namespace extensions