Split ResourceContext into its own file, and make it compile on iOS

content/browser/resource_context_impl.cc

Index: content/browser/resource_context_impl.cc
diff --git a/content/browser/resource_context_impl.cc b/content/browser/resource_context_impl.cc
index 1ebcbcea287d16c3eea9301b217e923fd2967624..75ff1fa721d9ee726a6053514ef9b9767d1873ac 100644
--- a/content/browser/resource_context_impl.cc
+++ b/content/browser/resource_context_impl.cc
@@ -5,7 +5,6 @@
 #include "content/browser/resource_context_impl.h"
 
 #include "base/logging.h"
-#include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/fileapi/browser_file_system_helper.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/histogram_internals_request_job.h"
@@ -23,23 +22,13 @@
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
-#include "webkit/appcache/appcache_service.h"
-#include "webkit/appcache/view_appcache_internals_job.h"
-#include "webkit/blob/blob_data.h"
-#include "webkit/blob/blob_url_request_job_factory.h"
-#include "webkit/database/database_tracker.h"
-#include "webkit/fileapi/file_system_url_request_job_factory.h"
 
 // Key names on ResourceContext.
 static const char* kBlobStorageContextKeyName = "content_blob_storage_context";
 static const char* kHostZoomMapKeyName = "content_host_zoom_map";
 
-using appcache::AppCacheService;
 using base::UserDataAdapter;
 using content::BrowserThread;
-using fileapi::FileSystemContext;
-using webkit_blob::BlobStorageController;
-using webkit_database::DatabaseTracker;
 
 namespace content {
 
@@ -57,19 +46,6 @@ class NonOwningZoomData : public base::SupportsUserData::Data {
 }  // namespace
 
 
-ResourceContext::ResourceContext() {
-  if (ResourceDispatcherHostImpl::Get())
-    ResourceDispatcherHostImpl::Get()->AddResourceContext(this);
-}
-
-ResourceContext::~ResourceContext() {
-  ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
-  if (rdhi) {
-    rdhi->CancelRequestsForContext(this);
-    rdhi->RemoveResourceContext(this);
-  }
-}
-
 ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
     ResourceContext* resource_context) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));