Remove RenderView::GetPageId.

BUG=371151
TEST=everything still works

Review URL: https://codereview.chromium.org/367113006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282545 0039d316-1c4b-4281-b951-d872f2087c98

content/public/renderer/render_view.h

@@ -59,14 +59,6 @@ class CONTENT_EXPORT RenderView : public IPC::Sender {
   // Get the routing ID of the view.
   virtual int GetRoutingID() const = 0;
 
-  // Page IDs allow the browser to identify pages in each renderer process for
-  // keeping back/forward history in sync.
-  // Note that this is NOT updated for every main frame navigation, only for
-  // "regular" navigations that go into session history. In particular, client
-  // redirects, like the page cycler uses (document.location.href="foo") do not
-  // count as regular navigations and do not increment the page id.
-  virtual int GetPageId() const = 0;
-
   // Returns the size of the view.
   virtual gfx::Size GetSize() const = 0;
 

content/renderer/render_view_impl.cc

@@ -2577,10 +2577,6 @@ int RenderViewImpl::GetRoutingID() const {
   return routing_id_;
 }
 
-int RenderViewImpl::GetPageId() const {
-  return page_id_;
-}
-
 gfx::Size RenderViewImpl::GetSize() const {
   return size();
 }

content/renderer/render_view_impl.h

@@ -480,7 +480,6 @@ class CONTENT_EXPORT RenderViewImpl
   virtual bool Send(IPC::Message* message) OVERRIDE;
   virtual RenderFrame* GetMainRenderFrame() OVERRIDE;
   virtual int GetRoutingID() const OVERRIDE;
-  virtual int GetPageId() const OVERRIDE;
   virtual gfx::Size GetSize() const OVERRIDE;
   virtual WebPreferences& GetWebkitPreferences() OVERRIDE;
   virtual void SetWebkitPreferences(const WebPreferences& preferences) OVERRIDE;