[Android] memory_inspector: move to libheap_profiler.

tools/memory_inspector/memory_inspector/core/backends.py

Index: tools/memory_inspector/memory_inspector/core/backends.py
diff --git a/tools/memory_inspector/memory_inspector/core/backends.py b/tools/memory_inspector/memory_inspector/core/backends.py
index 8a9f8ea7950641c90eda5943e05b1055257ad174..6464a72f8df267cf39f3d422045283a454a21ea1 100644
--- a/tools/memory_inspector/memory_inspector/core/backends.py
+++ b/tools/memory_inspector/memory_inspector/core/backends.py
@@ -134,6 +134,14 @@ class Process(object):
     """Returns an instance of |native_heap.NativeHeap|."""
     raise NotImplementedError()
 
+  def Freeze(self):
+    """Stops the process and all its threads."""
+    raise NotImplementedError()
+
+  def Unfreeze(self):
+    """Resumes the process."""
+    raise NotImplementedError()
+
   def GetStats(self):
     """Returns an instance of |ProcessStats|."""
     raise NotImplementedError()