Move SearchProvider implementation into Blink and make it a no-op.

chrome/renderer/external_extension.cc

Index: chrome/renderer/external_extension.cc
diff --git a/chrome/renderer/external_extension.cc b/chrome/renderer/external_extension.cc
deleted file mode 100644
index b0f81753bbababa39a03200394ad62e0d43efd66..0000000000000000000000000000000000000000
--- a/chrome/renderer/external_extension.cc
+++ /dev/null
@@ -1,113 +0,0 @@
-// 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 "chrome/renderer/external_extension.h"
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "chrome/common/search_provider.mojom.h"
-#include "content/public/renderer/render_thread.h"
-#include "services/shell/public/cpp/interface_provider.h"
-#include "third_party/WebKit/public/web/WebDocument.h"
-#include "third_party/WebKit/public/web/WebLocalFrame.h"
-#include "v8/include/v8.h"
-
-using blink::WebLocalFrame;
-using blink::WebView;
-
-namespace extensions_v8 {
-
-namespace {
-
-const char* const kSearchProviderApi =
-    "var external;"
-    "if (!external)"
-    "  external = {};"
-    "external.IsSearchProviderInstalled = function(name) {"
-    "  native function NativeIsSearchProviderInstalled();"
-    "  return NativeIsSearchProviderInstalled(name);"
-    "};";
-
-const char kExternalExtensionName[] = "v8/External";
-
-}  // namespace
-
-class ExternalExtensionWrapper : public v8::Extension {
- public:
-  ExternalExtensionWrapper();
-
-  // Allows v8's javascript code to call the native functions defined
-  // in this class for window.external.
-  v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate(
-      v8::Isolate* isolate,
-      v8::Local<v8::String> name) override;
-
-  // Implementation of window.external.IsSearchProviderInstalled.
-  static void IsSearchProviderInstalled(
-      const v8::FunctionCallbackInfo<v8::Value>& args);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ExternalExtensionWrapper);
-};
-
-ExternalExtensionWrapper::ExternalExtensionWrapper()
-    : v8::Extension(kExternalExtensionName, kSearchProviderApi) {
-}
-
-v8::Local<v8::FunctionTemplate>
-ExternalExtensionWrapper::GetNativeFunctionTemplate(
-    v8::Isolate* isolate,
-    v8::Local<v8::String> name) {
-  if (name->Equals(v8::String::NewFromUtf8(
-          isolate, "NativeIsSearchProviderInstalled"))) {
-    return v8::FunctionTemplate::New(isolate, IsSearchProviderInstalled);
-  }
-
-  return v8::Local<v8::FunctionTemplate>();
-}
-
-// static
-void ExternalExtensionWrapper::IsSearchProviderInstalled(
-    const v8::FunctionCallbackInfo<v8::Value>& args) {
-  if (!args.Length() || !args[0]->IsString())
-    return;
-
-  v8::String::Utf8Value utf8name(args[0]);
-  if (!utf8name.length())
-    return;
-
-  std::string name(*utf8name);
-
-  WebLocalFrame* webframe = WebLocalFrame::frameForCurrentContext();
-  if (!webframe)
-    return;
-
-  chrome::mojom::InstallState install = chrome::mojom::InstallState::DENIED;
-  GURL inquiry_url = GURL(webframe->document().url()).Resolve(name);
-  if (!inquiry_url.is_empty()) {
-    webframe->didCallIsSearchProviderInstalled();
-    chrome::mojom::SearchProviderInstallStatePtr search_provider_service;
-    content::RenderThread::Get()->GetRemoteInterfaces()->GetInterface(
-        mojo::GetProxy(&search_provider_service));
-    if (!search_provider_service->GetInstallState(webframe->document().url(),
-                                                  inquiry_url, &install)) {
-      DLOG(ERROR) << "Can't fetch search provider install state";
-    }
-  }
-
-  if (install == chrome::mojom::InstallState::DENIED) {
-    // FIXME: throw access denied exception.
-    v8::Isolate* isolate = args.GetIsolate();
-    isolate->ThrowException(v8::Exception::Error(v8::String::Empty(isolate)));
-    return;
-  }
-  args.GetReturnValue().Set(static_cast<int32_t>(install));
-}
-
-v8::Extension* ExternalExtension::Get() {
-  return new ExternalExtensionWrapper();
-}
-
-}  // namespace extensions_v8