Eliminate redundant IPC used for showing the Windows virtual keyboard

content/renderer/render_view_browsertest.cc

 // Copyright (c) 2012 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/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/shared_memory.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 2320 matching lines @@
            "<input id='test2' value='hello2'></input>");
 
   ExecuteJavaScript("document.getElementById('test1').focus();");
   const IPC::Message* msg1 = render_thread_->sink().GetFirstMessageMatching(
       ViewHostMsg_FocusedNodeChanged::ID);
   EXPECT_TRUE(msg1);
 
   ViewHostMsg_FocusedNodeChanged::Param params;
   ViewHostMsg_FocusedNodeChanged::Read(msg1, &params);
   EXPECT_TRUE(params.a);
+  EXPECT_EQ(blink::WebInputEvent:Undefined, params.b);
   render_thread_->sink().ClearMessages();
 
   ExecuteJavaScript("document.getElementById('test2').focus();");
   const IPC::Message* msg2 = render_thread_->sink().GetFirstMessageMatching(
         ViewHostMsg_FocusedNodeChanged::ID);
   EXPECT_TRUE(msg2);
   ViewHostMsg_FocusedNodeChanged::Read(msg2, &params);
   EXPECT_TRUE(params.a);
+  EXPECT_EQ(blink::WebInputEvent:Undefined, params.b);
   render_thread_->sink().ClearMessages();
 
   view()->webview()->clearFocusedElement();
   const IPC::Message* msg3 = render_thread_->sink().GetFirstMessageMatching(
         ViewHostMsg_FocusedNodeChanged::ID);
   EXPECT_TRUE(msg3);
   ViewHostMsg_FocusedNodeChanged::Read(msg3, &params);
   EXPECT_FALSE(params.a);
+  EXPECT_EQ(blink::WebInputEvent:Undefined, params.b);
   render_thread_->sink().ClearMessages();
 }
 
 TEST_F(RenderViewImplTest, ServiceWorkerNetworkProviderSetup) {
   ServiceWorkerNetworkProvider* provider = NULL;
   RequestExtraData* extra_data = NULL;
 
   // Make sure each new document has a new provider and
   // that the main request is tagged with the provider's id.
   LoadHTML("<b>A Document</b>");
@@ skipping 132 matching lines @@
   ProcessPendingMessages();
   base::Time after_navigation =
       base::Time::Now() + base::TimeDelta::FromDays(1);
 
   base::Time late_nav_reported_start =
       base::Time::FromDoubleT(GetMainFrame()->performance().navigationStart());
   EXPECT_LE(late_nav_reported_start, after_navigation);
 }
 
 }  // namespace content