Plumb request interception into the appcache library for both chrome and test_shell.

AppCache library:
* Added AppCacheInterceptor, which is derived from URLRequest::Interceptor.

Chrome:
* Each UserProfile instantiates a ChromeAppCacheService, which is derived from an appcache library class.
* Each ChromeURLRequestContext associated with that profile has a reference to that instance.
* ResourceDispatcherHost pokes AppCacheInterceptor when initiating URLRequests and when returning the response head.

TestShell:
* Added SimpleAppCacheSystem which bundles together appcache lib components for use in a single process with an UI and IO thread.
* TestShellWebKit instantiates and initializes an instance of the above, aimed at at temp directory that will get cleaned up when the test run is over.
* SimpleResourceLoaderBridge pokes the system when initiating URLRequests and when returning the response head.

TEST=none, although many existing tests exercise this stuff
BUG=none

Review URL: http://codereview.chromium.org/173406

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25099 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 32 insertions, 0 deletions

diff --git a/chrome/browser/profile.cc b/chrome/browser/profile.cc
index fb92549..1aa04e8 100644
--- a/chrome/browser/profile.cc
+++ b/chrome/browser/profile.cc
@@ -39,6 +39,7 @@
 #include "chrome/browser/visitedlink_master.h"
 #include "chrome/browser/visitedlink_event_listener.h"
 #include "chrome/browser/webdata/web_data_service.h"
+#include "chrome/common/appcache/chrome_appcache_service.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ -115,6 +116,16 @@ static void CleanupRequestContext(ChromeURLRequestContext* context) {
   }
 }
 
+static void CleanupAppCacheService(ChromeAppCacheService* service) {
+  if (service) {
+    MessageLoop* io_thread = ChromeThread::GetMessageLoop(ChromeThread::IO);
+    if (io_thread)
+      io_thread->ReleaseSoon(FROM_HERE, service);
+    else
+      service->Release();
+  }
+}
+
 // static
 void Profile::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterBooleanPref(prefs::kSearchSuggestEnabled, true);
@@ -187,6 +198,7 @@ class OffTheRecordProfileImpl : public Profile,
   virtual ~OffTheRecordProfileImpl() {
     CleanupRequestContext(request_context_);
     CleanupRequestContext(extensions_request_context_);
+    CleanupAppCacheService(appcache_service_.release());
   }
 
   virtual FilePath GetPath() { return profile_->GetPath(); }
@@ -208,6 +220,14 @@ class OffTheRecordProfileImpl : public Profile,
     return profile_;
   }
 
+  virtual ChromeAppCacheService* GetAppCacheService() {
+    if (!appcache_service_.get()) {
+      appcache_service_ = new ChromeAppCacheService();
+      appcache_service_->InitializeOnUIThread(GetPath(), true);
+    }
+    return appcache_service_.get();
+  }
+
   virtual VisitedLinkMaster* GetVisitedLinkMaster() {
     // We don't provide access to the VisitedLinkMaster when we're OffTheRecord
     // because we don't want to leak the sites that the user has visited before.
@@ -484,6 +504,9 @@ class OffTheRecordProfileImpl : public Profile,
 
   ChromeURLRequestContext* extensions_request_context_;
 
+  // Use a seperate appcache service for OTR.
+  scoped_refptr<ChromeAppCacheService> appcache_service_;
+
   // The download manager that only stores downloaded items in memory.
   scoped_refptr<DownloadManager> download_manager_;
 
@@ -700,6 +723,7 @@ ProfileImpl::~ProfileImpl() {
   CleanupRequestContext(request_context_);
   CleanupRequestContext(media_request_context_);
   CleanupRequestContext(extensions_request_context_);
+  CleanupAppCacheService(appcache_service_.release());
 
   // When the request contexts are gone, the blacklist wont be needed anymore.
   delete blacklist_;
@@ -749,6 +773,14 @@ Profile* ProfileImpl::GetOriginalProfile() {
   return this;
 }
 
+ChromeAppCacheService* ProfileImpl::GetAppCacheService() {
+  if (!appcache_service_.get()) {
+    appcache_service_ = new ChromeAppCacheService();
+    appcache_service_->InitializeOnUIThread(GetPath(), false);
+  }
+  return appcache_service_.get();
+}
+
 VisitedLinkMaster* ProfileImpl::GetVisitedLinkMaster() {
   if (!visited_link_master_.get()) {
     scoped_ptr<VisitedLinkMaster> visited_links(