Validate Bucket data in ShaderSourceBucket.

gpu/command_buffer/service/common_decoder.cc

Index: gpu/command_buffer/service/common_decoder.cc
diff --git a/gpu/command_buffer/service/common_decoder.cc b/gpu/command_buffer/service/common_decoder.cc
index 86a37ba77e5fb8dd94c4c285ed0ce3351c46ac92..9c329927286e8995b40da0b4fb5c3c8a5bd27084 100644
--- a/gpu/command_buffer/service/common_decoder.cc
+++ b/gpu/command_buffer/service/common_decoder.cc
@@ -18,12 +18,17 @@ void* CommonDecoder::Bucket::GetData(size_t offset, size_t size) const {
   return NULL;
 }
 
-void CommonDecoder::Bucket::SetSize(size_t size) {
+bool CommonDecoder::Bucket::SetSize(size_t size) {
   if (size != size_) {
     data_.reset(size ? new int8[size] : NULL);
+    if (!data_.get() && (size != 0)) {
+      size_ = 0;
+      return false;
+    }
     size_ = size;
     memset(data_.get(), 0, size);
   }
+  return true;
 }
 
 bool CommonDecoder::Bucket::SetData(
@@ -186,7 +191,9 @@ error::Error CommonDecoder::HandleSetBucketSize(
   uint32 size = args.size;
 
   Bucket* bucket = CreateBucket(bucket_id);
-  bucket->SetSize(size);
+  if (!bucket->SetSize(size)) {
+    return error::kOutOfBounds;
+  }
   return error::kNoError;
 }