<webview>: Remove broken captureVisibleRegion code until feature is properly supported

extensions/browser/api/web_view/web_view_internal_api.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 "extensions/browser/api/web_view/web_view_internal_api.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 135 matching lines @@
       error, on_url, result);
 }
 
 WebViewInternalInsertCSSFunction::WebViewInternalInsertCSSFunction() {
 }
 
 bool WebViewInternalInsertCSSFunction::ShouldInsertCSS() const {
   return true;
 }
 
-WebViewInternalCaptureVisibleRegionFunction::
-    WebViewInternalCaptureVisibleRegionFunction() {
-}
-
-WebViewInternalCaptureVisibleRegionFunction::
-    ~WebViewInternalCaptureVisibleRegionFunction() {
-}
-
-bool WebViewInternalCaptureVisibleRegionFunction::IsScreenshotEnabled() {
-  return true;
-}
-
-WebContents* WebViewInternalCaptureVisibleRegionFunction::GetWebContentsForID(
-    int instance_id) {
-  WebViewGuest* guest = WebViewGuest::From(
-      render_view_host()->GetProcess()->GetID(), instance_id);
-  return guest ? guest->web_contents() : NULL;
-}
-
-void WebViewInternalCaptureVisibleRegionFunction::OnCaptureFailure(
-    FailureReason reason) {
-  SendResponse(false);
-}
-
 WebViewInternalSetNameFunction::WebViewInternalSetNameFunction() {
 }
 
 WebViewInternalSetNameFunction::~WebViewInternalSetNameFunction() {
 }
 
 bool WebViewInternalSetNameFunction::RunAsyncSafe(WebViewGuest* guest) {
   scoped_ptr<webview::SetName::Params> params(
       webview::SetName::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
@@ skipping 327 matching lines @@
   // Will finish asynchronously.
   return true;
 }
 
 void WebViewInternalClearDataFunction::ClearDataDone() {
   Release();  // Balanced in RunAsync().
   SendResponse(true);
 }
 
 }  // namespace extensions