Move RenderViewHostObserver to content/public/browser/ and put it into the content namespace.

content/browser/renderer_host/render_view_host_manager_browsertest.cc

 // Copyright (c) 2011 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/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/renderer_host/render_view_host.h"
-#include "content/browser/renderer_host/render_view_host_observer.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_types.h"
+#include "content/public/browser/render_view_host_observer.h"
 #include "content/public/common/url_constants.h"
 #include "net/base/net_util.h"
 #include "net/test/test_server.h"
 
 class RenderViewHostManagerTest : public InProcessBrowserTest {
  public:
   RenderViewHostManagerTest() {
     EnableDOMAutomation();
   }
 
@@ skipping 234 matching lines @@
     }
   }
   void AddObserverToRVH(RenderViewHost* rvh) {
     observers_.push_back(new RVHObserver(this, rvh));
   }
   size_t GetNumObservers() const {
     return observers_.size();
   }
  private:
   friend class RVHObserver;
-  class RVHObserver : public RenderViewHostObserver {
+  class RVHObserver : public content::RenderViewHostObserver {
    public:
     RVHObserver(RenderViewHostObserverArray* parent, RenderViewHost* rvh)
-        : RenderViewHostObserver(rvh),
+        : content::RenderViewHostObserver(rvh),
           parent_(parent) {
     }
     virtual void RenderViewHostDestroyed(RenderViewHost* rvh) OVERRIDE {
       if (parent_)
         parent_->RemoveObserver(this);
-      RenderViewHostObserver::RenderViewHostDestroyed(rvh);
+      content::RenderViewHostObserver::RenderViewHostDestroyed(rvh);
     };
     void ClearParent() {
       parent_ = NULL;
     }
    private:
     RenderViewHostObserverArray* parent_;
   };
 
   void RemoveObserver(RVHObserver* observer) {
     observers_.remove(observer);
@@ skipping 35 matching lines @@
   // Now navigate to a different instance so that we swap out again.
   ui_test_utils::NavigateToURL(browser(),
                                https_server.GetURL("files/title2.html"));
   rvh_observers.AddObserverToRVH(browser()->GetSelectedTabContents()->
       render_view_host());
 
   // This used to leak a render view host.
   browser()->CloseTabContents(browser()->GetSelectedTabContents());
   EXPECT_EQ(0U, rvh_observers.GetNumObservers());
 }