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

chrome/browser/ui/webui/devtools_ui.cc

Index: chrome/browser/ui/webui/devtools_ui.cc
diff --git a/chrome/browser/ui/webui/devtools_ui.cc b/chrome/browser/ui/webui/devtools_ui.cc
index e16afaaa3a624c4a5fe7c6870b71679a5d01e9f6..033349ad256879d879086b90bdaf4402aa8efd49 100644
--- a/chrome/browser/ui/webui/devtools_ui.cc
+++ b/chrome/browser/ui/webui/devtools_ui.cc
@@ -35,7 +35,9 @@ namespace {
 
 std::string PathWithoutParams(const std::string& path) {
   return GURL(std::string("chrome-devtools://devtools/") + path)
-      .path().substr(1);
+      .path()
+      .substr(1)
+      .as_string();
 }
 
 const char kRemoteFrontendDomain[] = "chrome-devtools-frontend.appspot.com";
@@ -95,7 +97,7 @@ std::string SanitizeEndpoint(const std::string& value) {
 
 std::string SanitizeRemoteBase(const std::string& value) {
   GURL url(value);
-  std::string path = url.path();
+  std::string path = url.path().as_string();
   std::vector<std::string> parts = base::SplitString(
       path, "/", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
   std::string revision = parts.size() > 2 ? parts[2] : "";
@@ -110,7 +112,7 @@ std::string SanitizeRemoteFrontendURL(const std::string& value) {
       net::UnescapeRule::SPACES | net::UnescapeRule::PATH_SEPARATORS |
       net::UnescapeRule::URL_SPECIAL_CHARS_EXCEPT_PATH_SEPARATORS |
       net::UnescapeRule::REPLACE_PLUS_WITH_SPACE));
-  std::string path = url.path();
+  std::string path = url.path().as_string();
   std::vector<std::string> parts = base::SplitString(
       path, "/", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
   std::string revision = parts.size() > 2 ? parts[2] : "";
@@ -407,11 +409,10 @@ GURL DevToolsUI::GetProxyURL(const std::string& frontend_url) {
   GURL url(frontend_url);
   if (!url.is_valid() || url.host() != kRemoteFrontendDomain)
     return GURL(kFallbackFrontendURL);
-  return GURL(base::StringPrintf("%s://%s/%s/%s",
-              content::kChromeDevToolsScheme,
-              chrome::kChromeUIDevToolsHost,
-              chrome::kChromeUIDevToolsRemotePath,
-              url.path().substr(1).c_str()));
+  return GURL(base::StringPrintf(
+      "%s://%s/%s/%s", content::kChromeDevToolsScheme,
+      chrome::kChromeUIDevToolsHost, chrome::kChromeUIDevToolsRemotePath,
+      url.path().substr(1).as_string().c_str()));
 }
 
 // static
@@ -425,8 +426,9 @@ GURL DevToolsUI::GetRemoteBaseURL() {
 
 // static
 GURL DevToolsUI::SanitizeFrontendURL(const GURL& url) {
-  return ::SanitizeFrontendURL(url, content::kChromeDevToolsScheme,
-      chrome::kChromeUIDevToolsHost, SanitizeFrontendPath(url.path()), true);
+  return ::SanitizeFrontendURL(
+      url, content::kChromeDevToolsScheme, chrome::kChromeUIDevToolsHost,
+      SanitizeFrontendPath(url.path().as_string()), true);
 }
 
 DevToolsUI::DevToolsUI(content::WebUI* web_ui)