Android: Remove some devtools code from the build.

chrome/browser/devtools/devtools_targets_ui.h

 // 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.
 
 #ifndef CHROME_BROWSER_DEVTOOLS_DEVTOOLS_TARGETS_UI_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_TARGETS_UI_H_
 
 #include <map>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
+#include "content/public/browser/devtools_agent_host.h"
+
+#if !defined(OS_ANDROID) && !defined(OS_IOS)
 #include "chrome/browser/devtools/device/devtools_android_bridge.h"
+#endif
 
 namespace base {
 class ListValue;
 class DictionaryValue;
 }
 
 class DevToolsTargetImpl;
 class Profile;
 
 class DevToolsTargetsUIHandler {
@@ skipping 31 matching lines @@
   typedef std::map<std::string, DevToolsTargetImpl*> TargetMap;
   TargetMap targets_;
 
  private:
   const std::string source_id_;
   Callback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsTargetsUIHandler);
 };
 
+#if !defined(OS_ANDROID) && !defined(OS_IOS)
 class PortForwardingStatusSerializer
     : private DevToolsAndroidBridge::PortForwardingListener {
  public:
   typedef base::Callback<void(const base::Value&)> Callback;
 
   PortForwardingStatusSerializer(const Callback& callback, Profile* profile);
   ~PortForwardingStatusSerializer() override;
 
   void PortStatusChanged(const ForwardingStatus& status) override;
 
  private:
   Callback callback_;
   Profile* profile_;
 };
+#endif
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_TARGETS_UI_H_