Remove support for logging into a memory buffer.

tools/profile.js

Index: tools/profile.js
diff --git a/tools/profile.js b/tools/profile.js
index c9c9437e930d02b6a5cf4b8be64e1ca268e4a47a..15019be80b358ef3ec9005f69214b3141d5b3f77 100644
--- a/tools/profile.js
+++ b/tools/profile.js
@@ -162,8 +162,16 @@ Profile.prototype.addFuncCode = function(
     // Function object has been overwritten with a new one.
     func.name = name;
   }
-  var entry = new Profile.DynamicFuncCodeEntry(size, type, func, state);
-  this.codeMap_.addCode(start, entry);
+  var entry = this.codeMap_.findDynamicEntryByStartAddress(start);
+  if (entry) {
+    if (entry.size === size && entry.func === func) {
+      // Entry state has changed.
+      entry.state = state;
+    }
+  } else {
+    entry = new Profile.DynamicFuncCodeEntry(size, type, func, state);
+    this.codeMap_.addCode(start, entry);
+  }
   return entry;
 };
 
@@ -408,6 +416,11 @@ Profile.DynamicCodeEntry.prototype.isJSFunction = function() {
 };
 
 
+Profile.DynamicCodeEntry.prototype.toString = function() {
+  return this.getName() + ': ' + this.size.toString(16);
+};
+
+
 /**
  * Creates a dynamic code entry.
  *
@@ -448,6 +461,11 @@ Profile.DynamicFuncCodeEntry.prototype.isJSFunction = function() {
 };
 
 
+Profile.DynamicFuncCodeEntry.prototype.toString = function() {
+  return this.getName() + ': ' + this.size.toString(16);
+};
+
+
 /**
  * Creates a shared function object entry.
  *
@@ -473,6 +491,7 @@ Profile.FunctionEntry.prototype.getName = function() {
   return name;
 };
 
+Profile.FunctionEntry.prototype.toString = CodeMap.CodeEntry.prototype.toString;
 
 /**
  * Constructs a call graph.