Fix (unexpected) use of uninitialized boolean in parsing of Content-Type.

chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc

Index: chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc
diff --git a/chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc b/chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc
index c52349d879a5d67799b5535792989085b71bc8c8..24aecf7f4e6bd6428b5615c1dca724e647c92e19 100644
--- a/chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc
+++ b/chrome/browser/extensions/api/declarative_webrequest/webrequest_condition_attribute.cc
@@ -198,7 +198,7 @@ bool WebRequestConditionAttributeContentType::IsFulfilled(
       net::HttpRequestHeaders::kContentType, &content_type);
   std::string mime_type;
   std::string charset;
-  bool had_charset;
+  bool had_charset = false;
   net::HttpUtil::ParseContentType(
       content_type, &mime_type, &charset, &had_charset, NULL);