Fix saved screenshots for feedback.

chrome/browser/ui/webui/screenshot_source.cc

Index: chrome/browser/ui/webui/screenshot_source.cc
diff --git a/chrome/browser/ui/webui/screenshot_source.cc b/chrome/browser/ui/webui/screenshot_source.cc
index f4ba7ada5c43e78f74972f5fdf347a0f77a99ea9..c99bd870182d149c6f655adf1e173663c8deac15 100644
--- a/chrome/browser/ui/webui/screenshot_source.cc
+++ b/chrome/browser/ui/webui/screenshot_source.cc
@@ -163,6 +163,9 @@ void ScreenshotSource::CacheAndSendScreenshot(
     const std::string& screenshot_path,
     int request_id,
     ScreenshotDataPtr bytes) {
-  cached_screenshots_[screenshot_path] = bytes;
+  // Strip the query from the screenshot path.
+  std::string path = screenshot_path.substr(
+      0, screenshot_path.find_first_of("?"));
+  cached_screenshots_[path] = bytes;
   SendResponse(request_id, new base::RefCountedBytes(*bytes));
 }