Small fixes for Android.

runtime/vm/profiler.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/utils.h"
 
 #include "vm/allocation.h"
 #include "vm/atomic.h"
 #include "vm/code_patcher.h"
 #include "vm/isolate.h"
@@ skipping 1487 matching lines @@
 
 
 Sample* SampleBuffer::ReserveSample() {
   ASSERT(samples_ != NULL);
   uintptr_t cursor = AtomicOperations::FetchAndIncrement(&cursor_);
   // Map back into sample buffer range.
   cursor = cursor % capacity_;
   return At(cursor);
 }
 
+
 class ProfilerDartStackWalker : public ValueObject {
  public:
   explicit ProfilerDartStackWalker(Sample* sample)
       : sample_(sample),
         frame_iterator_() {
     ASSERT(sample_ != NULL);
   }
 
   ProfilerDartStackWalker(Sample* sample, uword pc, uword fp, uword sp)
       : sample_(sample),
@@ skipping 19 matching lines @@
       frame = frame_iterator_.NextFrame();
     }
     return frame_index;
   }
 
  private:
   Sample* sample_;
   DartFrameIterator frame_iterator_;
 };
 
+
 // Notes on stack frame walking:
 //
 // The sampling profiler will collect up to Sample::kNumStackFrames stack frames
 // The stack frame walking code uses the frame pointer to traverse the stack.
 // If the VM is compiled without frame pointers (which is the default on
 // recent GCC versions with optimizing enabled) the stack walking code may
 // fail (sometimes leading to a crash).
 //
 class ProfilerNativeStackWalker : public ValueObject {
  public:
@@ skipping 162 matching lines @@
       ProfilerDartStackWalker stackWalker(sample);
       stackWalker.walk();
     } else {
       // TODO(johnmccutchan): Support collecting only Dart frames with
       // ProfilerNativeStackWalker.
     }
   }
 }
 
 }  // namespace dart