Merge "Fix race condition in extension string creation" into main am: 5959d52278 am: 5ac4647aa9

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3147277

Change-Id: I93c80817e841f72e63b6c64fdad01eaba85cce4b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 5b5afd3..b1a287f 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -383,6 +383,14 @@
         // before using cnx->major & cnx->minor
         if (major != nullptr) *major = cnx->major;
         if (minor != nullptr) *minor = cnx->minor;
+        auto mergeExtensionStrings = [](const std::vector<std::string>& strings) {
+            std::ostringstream combinedStringStream;
+            std::copy(strings.begin(), strings.end(),
+                      std::ostream_iterator<std::string>(combinedStringStream, " "));
+            // gBuiltinExtensionString already has a trailing space so is added here
+            return gBuiltinExtensionString + combinedStringStream.str();
+        };
+        mExtensionString = mergeExtensionStrings(extensionStrings);
     }
 
     { // scope for refLock
@@ -391,14 +399,6 @@
         refCond.notify_all();
     }
 
-    auto mergeExtensionStrings = [](const std::vector<std::string>& strings) {
-        std::ostringstream combinedStringStream;
-        std::copy(strings.begin(), strings.end(),
-                  std::ostream_iterator<std::string>(combinedStringStream, " "));
-        // gBuiltinExtensionString already has a trailing space so is added here
-        return gBuiltinExtensionString + combinedStringStream.str();
-    };
-    mExtensionString = mergeExtensionStrings(extensionStrings);
     return EGL_TRUE;
 }