Remove support for logging into a memory buffer.

src/log.cc

Index: src/log.cc
diff --git a/src/log.cc b/src/log.cc
index 7825806ecc7f160c643aeb273f4bf21e4740c321..04fd22ef5c1bbd156dede764ade0ba6fcdc7fe5d 100644
--- a/src/log.cc
+++ b/src/log.cc
@@ -1281,7 +1281,6 @@ void Logger::PauseProfiler() {
           ticker_->Stop();
         }
         FLAG_log_code = false;
-        // Must be the same message as Log::kDynamicBufferSeal.
         LOG(ISOLATE, UncheckedStringEvent("profiler", "pause"));
       }
       --logging_nesting_;
@@ -1323,11 +1322,6 @@ bool Logger::IsProfilerSamplerActive() {
 }
 
 
-int Logger::GetLogLines(int from_pos, char* dest_buf, int max_size) {
-  return log_->GetLogLines(from_pos, dest_buf, max_size);
-}
-
-
 class EnumerateOptimizedFunctionsVisitor: public OptimizedFunctionVisitor {
  public:
   EnumerateOptimizedFunctionsVisitor(Handle<SharedFunctionInfo>* sfis,
@@ -1683,8 +1677,8 @@ void Logger::EnsureTickerStopped() {
 }
 
 
-void Logger::TearDown() {
-  if (!is_initialized_) return;
+FILE* Logger::TearDown() {
+  if (!is_initialized_) return NULL;
   is_initialized_ = false;
 
   // Stop the profiler before closing the file.
@@ -1700,7 +1694,7 @@ void Logger::TearDown() {
   delete ticker_;
   ticker_ = NULL;
 
-  log_->Close();
+  return log_->Close();
 }