Prerender: Add PrerenderManager and PrerenderContents

Contributed By: tburkard@chromium.org

BUG=None
TEST=trybots, no new unit tests

Review URL: http://codereview.chromium.org/5180005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68602 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 31 insertions, 1 deletions

diff --git a/chrome/browser/profiles/profile.cc b/chrome/browser/profiles/profile.cc
index 38aadf0..d2087fc 100644
--- a/chrome/browser/profiles/profile.cc
+++ b/chrome/browser/profiles/profile.cc
@@ -70,6 +70,11 @@ void CleanupRequestContext(ChromeURLRequestContextGetter* context) {
 
 } // namespace
 
+Profile::Profile()
+    : restored_last_session_(false),
+      accessibility_pause_level_(0) {
+}
+
 // static
 const ProfileId Profile::InvalidProfileId = static_cast<ProfileId>(0);
 
@@ -598,6 +603,13 @@ class OffTheRecordProfileImpl : public Profile,
     return profile_->GetProxyConfigTracker();
   }
 
+  virtual PrerenderManager* GetPrerenderManager() {
+    // We do not allow prerendering in OTR profiles at this point.
+    // TODO(tburkard): Figure out if we want to support this, and how, at some
+    // point in the future.
+    return NULL;
+  }
+
  private:
   NotificationRegistrar registrar_;
 
diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index b563010..9bf0f3e5 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -74,6 +74,7 @@ class PinnedTabService;
 class PrefService;
 class ExtensionInfoMap;
 class PrefProxyConfigTracker;
+class PrerenderManager;
 class PromoCounter;
 class ProfileSyncService;
 class ProfileSyncFactory;
@@ -130,7 +131,7 @@ class Profile {
   // Value that represents no profile Id.
   static const ProfileId InvalidProfileId;
 
-  Profile() : restored_last_session_(false), accessibility_pause_level_(0) {}
+  Profile();
   virtual ~Profile() {}
 
   // Profile prefs are registered as soon as the prefs are loaded for the first
@@ -495,6 +496,10 @@ class Profile {
   // access to the the proxy configuration possibly defined by preferences.
   virtual PrefProxyConfigTracker* GetProxyConfigTracker() = 0;
 
+  // Returns the PrerenderManager used to prerender entire webpages for this
+  // profile.
+  virtual PrerenderManager* GetPrerenderManager() = 0;
+
 #ifdef UNIT_TEST
   // Use with caution.  GetDefaultRequestContext may be called on any thread!
   static void set_default_request_context(URLRequestContextGetter* c) {
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 66b023f..7913da1 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -59,6 +59,7 @@
 #include "chrome/browser/policy/profile_policy_context.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/prefs/pref_value_store.h"
+#include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
@@ -1352,3 +1353,12 @@ PrefProxyConfigTracker* ProfileImpl::GetProxyConfigTracker() {
 
   return pref_proxy_config_tracker_;
 }
+
+PrerenderManager* ProfileImpl::GetPrerenderManager() {
+  CommandLine* cl = CommandLine::ForCurrentProcess();
+  if (!cl->HasSwitch(switches::kEnablePagePrerender))
+    return NULL;
+  if (!prerender_manager_.get())
+    prerender_manager_.reset(new PrerenderManager(this));
+  return prerender_manager_.get();
+}
diff --git a/chrome/browser/profiles/profile_impl.h b/chrome/browser/profiles/profile_impl.h
index d018825..59a1695 100644
--- a/chrome/browser/profiles/profile_impl.h
+++ b/chrome/browser/profiles/profile_impl.h
@@ -133,6 +133,7 @@ class ProfileImpl : public Profile,
 #endif  // defined(OS_CHROMEOS)
 
   virtual PrefProxyConfigTracker* GetProxyConfigTracker();
+  virtual PrerenderManager* GetPrerenderManager();
 
   // NotificationObserver implementation.
   virtual void Observe(NotificationType type,
@@ -296,6 +297,8 @@ class ProfileImpl : public Profile,
 
   scoped_refptr<PrefProxyConfigTracker> pref_proxy_config_tracker_;
 
+  scoped_ptr<PrerenderManager> prerender_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileImpl);
 };