Implement IsSearchProviderInstalled and a test for it.

chrome/browser/renderer_host/render_view_host_delegate.h

 // Copyright (c) 2010 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_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 23 matching lines @@
 struct RendererPreferences;
 class RenderProcessHost;
 class RenderViewHost;
 class ResourceRedirectDetails;
 class ResourceRequestDetails;
 class SkBitmap;
 class TabContents;
 struct ThumbnailScore;
 struct ViewHostMsg_DidPrintPage_Params;
 struct ViewHostMsg_FrameNavigate_Params;
+struct ViewHostMsg_GetSearchProviderInstallState_Params;
 struct ViewHostMsg_RunFileChooser_Params;
 struct WebDropData;
 class WebKeyboardEvent;
 struct WebPreferences;
 
 namespace base {
 class WaitableEvent;
 }
 
 namespace gfx {
@@ skipping 591 matching lines @@
 
   // On initial layout, password forms are known to be visible on the page.
   virtual void PasswordFormsVisible(
       const std::vector<webkit_glue::PasswordForm>& visible_forms) {}
 
   // Notification that the page has an OpenSearch description document.
   virtual void PageHasOSDD(RenderViewHost* render_view_host,
                            int32 page_id, const GURL& doc_url,
                            bool autodetected) {}
 
+  // Returns the install state of the search provider url (not installed,
+  // installed, default).
+  virtual ViewHostMsg_GetSearchProviderInstallState_Params
+      GetSearchProviderInstallState(const GURL& url);
+
   // |url| is assigned to a server that can provide alternate error pages.  If
   // the returned URL is empty, the default error page built into WebKit will
   // be used.
   virtual GURL GetAlternateErrorPageURL() const;
 
   // Return a dummy RendererPreferences object that will be used by the renderer
   // associated with the owning RenderViewHost.
   virtual RendererPreferences GetRendererPrefs(Profile* profile) const = 0;
 
   // Returns a WebPreferences object that will be used by the renderer
@@ skipping 36 matching lines @@
   virtual bool IsExternalTabContainer() const;
 
   // The RenderView has inserted one css file into page.
   virtual void DidInsertCSS() {}
 
   // A different node in the page got focused.
   virtual void FocusedNodeChanged() {}
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_