Initialize destinations variables before calling GL functions...

gpu/command_buffer/service/common_decoder.cc

Index: gpu/command_buffer/service/common_decoder.cc
===================================================================
--- gpu/command_buffer/service/common_decoder.cc	(revision 67161)
+++ gpu/command_buffer/service/common_decoder.cc	(working copy)
@@ -35,11 +35,16 @@
   return false;
 }
 
-void CommonDecoder::Bucket::SetFromString(const std::string& str) {
+void CommonDecoder::Bucket::SetFromString(const char* str) {
   // Strings are passed NULL terminated to distinguish between empty string
   // and no string.
-  SetSize(str.size() + 1);
-  SetData(str.c_str(), 0, str.size() + 1);
+  if (!str) {
+    SetSize(0);
+  } else {
+    size_t size = strlen(str) + 1;
+    SetSize(size);
+    SetData(str, 0, size);
+  }
 }
 
 bool CommonDecoder::Bucket::GetAsString(std::string* str) {