Add GPU fingerprint information to breakpad microdumps.

src/client/linux/handler/minidump_descriptor.cc

Index: src/client/linux/handler/minidump_descriptor.cc
diff --git a/src/client/linux/handler/minidump_descriptor.cc b/src/client/linux/handler/minidump_descriptor.cc
index c601d35f04d8a2283386c5e1bb4be1bcad672521..3e87bfb8217024eb80c49ccb6981dcdf03701870 100644
--- a/src/client/linux/handler/minidump_descriptor.cc
+++ b/src/client/linux/handler/minidump_descriptor.cc
@@ -46,7 +46,8 @@ MinidumpDescriptor::MinidumpDescriptor(const MinidumpDescriptor& descriptor)
       c_path_(NULL),
       size_limit_(descriptor.size_limit_),
       microdump_build_fingerprint_(descriptor.microdump_build_fingerprint_),
-      microdump_product_info_(descriptor.microdump_product_info_) {
+      microdump_product_info_(descriptor.microdump_product_info_),
+      microdump_gpu_fingerprint_(descriptor.microdump_gpu_fingerprint_) {
   // The copy constructor is not allowed to be called on a MinidumpDescriptor
   // with a valid path_, as getting its c_path_ would require the heap which
   // can cause problems in compromised environments.
@@ -69,6 +70,7 @@ MinidumpDescriptor& MinidumpDescriptor::operator=(
   size_limit_ = descriptor.size_limit_;
   microdump_build_fingerprint_ = descriptor.microdump_build_fingerprint_;
   microdump_product_info_ = descriptor.microdump_product_info_;
+  microdump_gpu_fingerprint_ = descriptor.microdump_gpu_fingerprint_;
   return *this;
 }
 
@@ -97,4 +99,10 @@ void MinidumpDescriptor::SetMicrodumpProductInfo(const char* product_info) {
   microdump_product_info_ = product_info;
 }
 
+void MinidumpDescriptor::SetMicrodumpGPUFingerprint(
+    const char* gpu_fingerprint) {
+  assert(mode_ == kWriteMicrodumpToConsole);
+  microdump_gpu_fingerprint_ = gpu_fingerprint;
+}
+
 }  // namespace google_breakpad