Make DownloadHistory observe manager, items

content/browser/download/download_item_impl.cc

Index: content/browser/download/download_item_impl.cc
diff --git a/content/browser/download/download_item_impl.cc b/content/browser/download/download_item_impl.cc
index 053406902ba7e43d870827062f8ad9c0965bf599..3a04c898fa6a88e8906f975e04c99970efde38b0 100644
--- a/content/browser/download/download_item_impl.cc
+++ b/content/browser/download/download_item_impl.cc
@@ -47,7 +47,6 @@
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
-#include "content/public/browser/download_persistent_store_info.h"
 #include "net/base/net_util.h"
 
 using content::BrowserThread;
@@ -55,7 +54,6 @@ using content::DownloadFile;
 using content::DownloadId;
 using content::DownloadItem;
 using content::DownloadManager;
-using content::DownloadPersistentStoreInfo;
 using content::WebContents;
 
 namespace {
@@ -126,55 +124,49 @@ class NullDownloadRequestHandle : public DownloadRequestHandleInterface {
 
 namespace content {
 
-// Our download table ID starts at 1, so we use 0 to represent a download that
-// has started, but has not yet had its data persisted in the table. We use fake
-// database handles in incognito mode starting at -1 and progressively getting
-// more negative.
-// static
-const int DownloadItem::kUninitializedHandle = 0;
-
 const char DownloadItem::kEmptyFileHash[] = "";
 
 }
 
-// Our download table ID starts at 1, so we use 0 to represent a download that
-// has started, but has not yet had its data persisted in the table. We use fake
-// database handles in incognito mode starting at -1 and progressively getting
-// more negative.
-
 // Constructor for reading from the history service.
 DownloadItemImpl::DownloadItemImpl(DownloadItemImplDelegate* delegate,
                                    DownloadId download_id,
-                                   const DownloadPersistentStoreInfo& info,
+                                   const FilePath& path,
+                                   const GURL& url,
+                                   const GURL& referrer_url,
+                                   const base::Time& start_time,
+                                   const base::Time& end_time,
+                                   int64 received_bytes,
+                                   int64 total_bytes,
+                                   DownloadItem::DownloadState state,
+                                   bool opened,
                                    const net::BoundNetLog& bound_net_log)
     : download_id_(download_id),
-      current_path_(info.path),
-      target_path_(info.path),
+      current_path_(path),
+      target_path_(path),
       target_disposition_(TARGET_DISPOSITION_OVERWRITE),
-      url_chain_(1, info.url),
-      referrer_url_(info.referrer_url),
+      url_chain_(1, url),
+      referrer_url_(referrer_url),
       transition_type_(content::PAGE_TRANSITION_LINK),
       has_user_gesture_(false),
-      total_bytes_(info.total_bytes),
-      received_bytes_(info.received_bytes),
+      total_bytes_(total_bytes),
+      received_bytes_(received_bytes),
       bytes_per_sec_(0),
       last_reason_(content::DOWNLOAD_INTERRUPT_REASON_NONE),
       start_tick_(base::TimeTicks()),
-      state_(info.state),
+      state_(state),
       danger_type_(content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS),
-      start_time_(info.start_time),
-      end_time_(info.end_time),
-      db_handle_(info.db_handle),
+      start_time_(start_time),
+      end_time_(end_time),
       delegate_(delegate),
       is_paused_(false),
       open_when_complete_(false),
       file_externally_removed_(false),
       safety_state_(SAFE),
       auto_opened_(false),
-      is_persisted_(true),
       is_temporary_(false),
       all_data_saved_(false),
-      opened_(info.opened),
+      opened_(opened),
       open_enabled_(true),
       delegate_delayed_complete_(false),
       bound_net_log_(bound_net_log),
@@ -218,14 +210,12 @@ DownloadItemImpl::DownloadItemImpl(
       state_(IN_PROGRESS),
       danger_type_(content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS),
       start_time_(info.start_time),
-      db_handle_(DownloadItem::kUninitializedHandle),
       delegate_(delegate),
       is_paused_(false),
       open_when_complete_(false),
       file_externally_removed_(false),
       safety_state_(SAFE),
       auto_opened_(false),
-      is_persisted_(false),
       is_temporary_(!info.save_info.file_path.empty()),
       all_data_saved_(false),
       opened_(false),
@@ -273,14 +263,12 @@ DownloadItemImpl::DownloadItemImpl(DownloadItemImplDelegate* delegate,
       state_(IN_PROGRESS),
       danger_type_(content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS),
       start_time_(base::Time::Now()),
-      db_handle_(DownloadItem::kUninitializedHandle),
       delegate_(delegate),
       is_paused_(false),
       open_when_complete_(false),
       file_externally_removed_(false),
       safety_state_(SAFE),
       auto_opened_(false),
-      is_persisted_(false),
       is_temporary_(false),
       all_data_saved_(false),
       opened_(false),
@@ -455,10 +443,6 @@ DownloadId DownloadItemImpl::GetGlobalId() const {
   return download_id_;
 }
 
-int64 DownloadItemImpl::GetDbHandle() const {
-  return db_handle_;
-}
-
 DownloadItem::DownloadState DownloadItemImpl::GetState() const {
   return state_;
 }
@@ -475,10 +459,6 @@ bool DownloadItemImpl::IsTemporary() const {
   return is_temporary_;
 }
 
-bool DownloadItemImpl::IsPersisted() const {
-  return is_persisted_;
-}
-
 // TODO(ahendrickson) -- Move |INTERRUPTED| from |IsCancelled()| to
 // |IsPartialDownload()|, when resuming interrupted downloads is implemented.
 bool DownloadItemImpl::IsPartialDownload() const {
@@ -732,20 +712,6 @@ bool DownloadItemImpl::MatchesQuery(const string16& query) const {
       query, path, NULL, NULL);
 }
 
-DownloadPersistentStoreInfo DownloadItemImpl::GetPersistentStoreInfo() const {
-  // TODO(asanka): Persist GetTargetFilePath() as well.
-  return DownloadPersistentStoreInfo(GetFullPath(),
-                                     GetURL(),
-                                     GetReferrerUrl(),
-                                     GetStartTime(),
-                                     GetEndTime(),
-                                     GetReceivedBytes(),
-                                     GetTotalBytes(),
-                                     GetState(),
-                                     GetDbHandle(),
-                                     GetOpened());
-}
-
 content::BrowserContext* DownloadItemImpl::GetBrowserContext() const {
   return delegate_->GetBrowserContext();
 }
@@ -807,7 +773,6 @@ std::string DownloadItemImpl::DebugString(bool verbose) const {
 
   if (verbose) {
     description += base::StringPrintf(
-        " db_handle = %" PRId64
         " total = %" PRId64
         " received = %" PRId64
         " reason = %s"
@@ -818,7 +783,6 @@ std::string DownloadItemImpl::DebugString(bool verbose) const {
         " url_chain = \n\t\"%s\"\n\t"
         " full_path = \"%" PRFilePath "\""
         " target_path = \"%" PRFilePath "\"",
-        GetDbHandle(),
         GetTotalBytes(),
         GetReceivedBytes(),
         InterruptReasonDebugString(last_reason_).c_str(),
@@ -943,18 +907,6 @@ void DownloadItemImpl::MarkAsComplete() {
   TransitionTo(COMPLETE);
 }
 
-void DownloadItemImpl::SetIsPersisted() {
-  is_persisted_ = true;
-}
-
-void DownloadItemImpl::SetDbHandle(int64 handle) {
-  db_handle_ = handle;
-
-  bound_net_log_.AddEvent(
-      net::NetLog::TYPE_DOWNLOAD_ITEM_IN_HISTORY,
-      net::NetLog::Int64Callback("db_handle", db_handle_));
-}
-
 // **** Download progression cascade
 
 void DownloadItemImpl::Init(bool active,
@@ -981,18 +933,16 @@ void DownloadItemImpl::Init(bool active,
       file_name = GetURL().ExtractFileName();
   }
 
-  bound_net_log_.BeginEvent(
-      net::NetLog::TYPE_DOWNLOAD_ITEM_ACTIVE,
-      base::Bind(&download_net_logs::ItemActivatedCallback,
-                 this, download_type, &file_name));
-
-  // If this is not an active download, end the ACTIVE event now.
-  if (!active) {
+  if (active) {

[Randy Smith (Not in Mondays), 2012/09/13 19:53:19]

There's enough duplicated code here (like, all of it :-}) that I'd probably
setup a temporary variable that was a pointer to class method, set it based on
active, and do the call once.  But I'm good either way--just raising the idea in
case it appeals.

[benjhayden, 2012/09/21 20:45:46]

I named the callback instead. How does it look now?

[Randy Smith (Not in Mondays), 2012/09/24 18:03:25]

Looks good.

+    bound_net_log_.BeginEvent(
+        net::NetLog::TYPE_DOWNLOAD_ITEM_ACTIVE,
+        base::Bind(&download_net_logs::ItemActivatedCallback,
+                  this, download_type, &file_name));
+  } else {
     bound_net_log_.AddEvent(
-        net::NetLog::TYPE_DOWNLOAD_ITEM_IN_HISTORY,
-        net::NetLog::Int64Callback("db_handle", db_handle_));
-
-    bound_net_log_.EndEvent(net::NetLog::TYPE_DOWNLOAD_ITEM_ACTIVE);
+        net::NetLog::TYPE_DOWNLOAD_ITEM_ACTIVE,
+        base::Bind(&download_net_logs::ItemActivatedCallback,
+                  this, download_type, &file_name));
   }
 
   VLOG(20) << __FUNCTION__ << "() " << DebugString(true);
@@ -1109,7 +1059,7 @@ void DownloadItemImpl::OnDownloadRenamedToFinalName(
   DCHECK(!full_path.empty());
   target_path_ = full_path;
   SetFullPath(full_path);
-  delegate_->DownloadRenamedToFinalName(this);
+  UpdateObservers();
 
   // Complete the download and release the DownloadFile.
   BrowserThread::PostTask(