[WIP] make GURL::path() return a StringPiece

components/content_settings/core/common/content_settings_pattern.cc

Index: components/content_settings/core/common/content_settings_pattern.cc
diff --git a/components/content_settings/core/common/content_settings_pattern.cc b/components/content_settings/core/common/content_settings_pattern.cc
index c86044ef639783a0e769bf69be8f0cffe5ca2c63..a8d87979e405ca6f5888d852349b57425c758746 100644
--- a/components/content_settings/core/common/content_settings_pattern.cc
+++ b/components/content_settings/core/common/content_settings_pattern.cc
@@ -233,7 +233,7 @@ bool ContentSettingsPattern::Builder::Canonicalize(PatternParts* parts) {
       !parts->is_path_wildcard) {
     GURL url(std::string(url::kFileScheme) +
              std::string(url::kStandardSchemeSeparator) + parts->path);
-    parts->path = url.path();
+    parts->path = url.path().as_string();
   }
 
   // Canonicalize the host part.
@@ -391,7 +391,8 @@ ContentSettingsPattern ContentSettingsPattern::FromURL(
     local_url = url.inner_url();
   }
   if (local_url->SchemeIsFile()) {
-    builder->WithScheme(local_url->scheme())->WithPath(local_url->path());
+    builder->WithScheme(local_url->scheme())
+        ->WithPath(local_url->path().as_string());
   } else {
     // Please keep the order of the ifs below as URLs with an IP as host can
     // also have a "http" scheme.
@@ -429,7 +430,8 @@ ContentSettingsPattern ContentSettingsPattern::FromURLNoWildcard(
     local_url = url.inner_url();
   }
   if (local_url->SchemeIsFile()) {
-    builder->WithScheme(local_url->scheme())->WithPath(local_url->path());
+    builder->WithScheme(local_url->scheme())
+        ->WithPath(local_url->path().as_string());
   } else {
     builder->WithScheme(local_url->scheme())->WithHost(local_url->host());
     if (local_url->port().empty()) {
@@ -558,7 +560,7 @@ bool ContentSettingsPattern::Matches(
   // inside the filesystem scheme. Investigate and fix.
   if (!parts_.is_scheme_wildcard && scheme == url::kFileScheme)
     return parts_.is_path_wildcard ||
-        parts_.path == std::string(local_url->path());
+           parts_.path == std::string(local_url->path().as_string());
 
   // Match the host part.
   const std::string host(net::TrimEndingDot(local_url->host()));