2 files changed, 4 insertions, 2 deletions
diff --git a/base/values.cc b/base/values.cc
index d97da24..51e68a7 100644
--- a/base/values.cc
+++ b/base/values.cc
@@ -193,7 +193,8 @@ BinaryValue* BinaryValue::Create(char* buffer, size_t size) {
 }
 
 // static
-BinaryValue* BinaryValue::CreateWithCopiedBuffer(char* buffer, size_t size) {
+BinaryValue* BinaryValue::CreateWithCopiedBuffer(const char* buffer,
+                                                 size_t size) {
   if (!buffer)
     return NULL;
 
diff --git a/base/values.h b/base/values.h
index 8e3669b..b3c380c 100644
--- a/base/values.h
+++ b/base/values.h
@@ -171,7 +171,7 @@ class BinaryValue: public Value {
   // factory method creates a new BinaryValue by copying the contents of the
   // buffer that's passed in.
   // Returns NULL if buffer is NULL.
-  static BinaryValue* CreateWithCopiedBuffer(char* buffer, size_t size);
+  static BinaryValue* CreateWithCopiedBuffer(const char* buffer, size_t size);
 
   ~BinaryValue();
 
@@ -181,6 +181,7 @@ class BinaryValue: public Value {
 
   size_t GetSize() const { return size_; }
   char* GetBuffer() { return buffer_; }
+  const char* GetBuffer() const { return buffer_; }
 
  private:
   // Constructor is private so that only objects with valid buffer pointers