Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/chromeos/system/syslogs_provider.cc

Index: chrome/browser/chromeos/system/syslogs_provider.cc
diff --git a/chrome/browser/chromeos/system/syslogs_provider.cc b/chrome/browser/chromeos/system/syslogs_provider.cc
index 340b7dfd54c1428d0fe2506e38c9752f260ddc2a..f8fd4b0abcd4dee2a098ae1c4a1edba1ed62e7ae 100644
--- a/chrome/browser/chromeos/system/syslogs_provider.cc
+++ b/chrome/browser/chromeos/system/syslogs_provider.cc
@@ -182,11 +182,11 @@ LogDictionaryType* GetSystemLogs(base::FilePath* zip_file_name,
 class SyslogsProviderImpl : public SyslogsProvider {
  public:
   // SyslogsProvider implementation:
-  virtual CancelableTaskTracker::TaskId RequestSyslogs(
+  virtual base::CancelableTaskTracker::TaskId RequestSyslogs(
       bool compress_logs,
       SyslogsContext context,
       const ReadCompleteCallback& callback,
-      CancelableTaskTracker* tracker) OVERRIDE;
+      base::CancelableTaskTracker* tracker) OVERRIDE;
 
   static SyslogsProviderImpl* GetInstance();
 
@@ -196,7 +196,7 @@ class SyslogsProviderImpl : public SyslogsProvider {
   // Reads system logs, compresses content if requested.
   // Called from blocking pool thread.
   void ReadSyslogs(
-      const CancelableTaskTracker::IsCanceledCallback& is_canceled,
+      const base::CancelableTaskTracker::IsCanceledCallback& is_canceled,
       bool compress_logs,
       SyslogsContext context,
       const ReadCompleteCallback& callback);
@@ -213,7 +213,7 @@ class SyslogsProviderImpl : public SyslogsProvider {
   // If not canceled, run callback on originating thread (the thread on which
   // ReadSyslogs was run).
   static void RunCallbackIfNotCanceled(
-      const CancelableTaskTracker::IsCanceledCallback& is_canceled,
+      const base::CancelableTaskTracker::IsCanceledCallback& is_canceled,
       base::TaskRunner* origin_runner,
       const ReadCompleteCallback& callback,
       LogDictionaryType* logs,
@@ -225,13 +225,14 @@ class SyslogsProviderImpl : public SyslogsProvider {
 SyslogsProviderImpl::SyslogsProviderImpl() {
 }
 
-CancelableTaskTracker::TaskId SyslogsProviderImpl::RequestSyslogs(
+base::CancelableTaskTracker::TaskId SyslogsProviderImpl::RequestSyslogs(
     bool compress_logs,
     SyslogsContext context,
     const ReadCompleteCallback& callback,
-    CancelableTaskTracker* tracker) {
-  CancelableTaskTracker::IsCanceledCallback is_canceled;
-  CancelableTaskTracker::TaskId id = tracker->NewTrackedTaskId(&is_canceled);
+    base::CancelableTaskTracker* tracker) {
+  base::CancelableTaskTracker::IsCanceledCallback is_canceled;
+  base::CancelableTaskTracker::TaskId id =
+      tracker->NewTrackedTaskId(&is_canceled);
 
   ReadCompleteCallback callback_runner =
       base::Bind(&SyslogsProviderImpl::RunCallbackIfNotCanceled,
@@ -295,7 +296,7 @@ SyslogsMemoryHandler::~SyslogsMemoryHandler() {}
 
 // Called from blocking pool thread.
 void SyslogsProviderImpl::ReadSyslogs(
-    const CancelableTaskTracker::IsCanceledCallback& is_canceled,
+    const base::CancelableTaskTracker::IsCanceledCallback& is_canceled,
     bool compress_logs,
     SyslogsContext context,
     const ReadCompleteCallback& callback) {
@@ -373,7 +374,7 @@ const char* SyslogsProviderImpl::GetSyslogsContextString(
 
 // static
 void SyslogsProviderImpl::RunCallbackIfNotCanceled(
-    const CancelableTaskTracker::IsCanceledCallback& is_canceled,
+    const base::CancelableTaskTracker::IsCanceledCallback& is_canceled,
     base::TaskRunner* origin_runner,
     const ReadCompleteCallback& callback,
     LogDictionaryType* logs,