Revert of Remove StringBuilder::appendLiteral.

third_party/WebKit/Source/platform/exported/WebMediaConstraints.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 28 matching lines @@
 namespace blink {
 
 namespace {
 
 template <typename T>
 void maybeEmitNamedValue(StringBuilder& builder, bool emit, const char* name, T value)
 {
     if (!emit)
         return;
     if (builder.length() > 1)
-        builder.append(", ");
+        builder.appendLiteral(", ");
     builder.append(name);
-    builder.append(": ");
+    builder.appendLiteral(": ");
     builder.appendNumber(value);
 }
 
 void maybeEmitNamedBoolean(StringBuilder& builder, bool emit, const char* name, bool value)
 {
     if (!emit)
         return;
     if (builder.length() > 1)
-        builder.append(", ");
+        builder.appendLiteral(", ");
     builder.append(name);
-    builder.append(": ");
+    builder.appendLiteral(": ");
     if (value)
-        builder.append("true");
+        builder.appendLiteral("true");
     else
-        builder.append("false");
+        builder.appendLiteral("false");
 }
 
 } // namespace
 
 class WebMediaConstraintsPrivate final : public RefCounted<WebMediaConstraintsPrivate> {
 public:
     static PassRefPtr<WebMediaConstraintsPrivate> create();
     static PassRefPtr<WebMediaConstraintsPrivate> create(const WebMediaTrackConstraintSet& basic, const WebVector<WebMediaTrackConstraintSet>& advanced);
 
     bool isEmpty() const;
@@ skipping 44 matching lines @@
 }
 
 const String WebMediaConstraintsPrivate::toString() const
 {
     StringBuilder builder;
     if (!isEmpty()) {
         builder.append('{');
         builder.append(basic().toString());
         if (!advanced().isEmpty()) {
             if (builder.length() > 1)
-                builder.append(", ");
-            builder.append("advanced: [");
+                builder.appendLiteral(", ");
+            builder.appendLiteral("advanced: [");
             bool first = true;
             for (const auto& constraintSet : advanced()) {
                 if (!first)
-                    builder.append(", ");
+                    builder.appendLiteral(", ");
                 builder.append('{');
                 builder.append(constraintSet.toString());
                 builder.append('}');
                 first = false;
             }
             builder.append(']');
         }
         builder.append('}');
     }
     return builder.toString();
@@ skipping 148 matching lines @@
 const WebVector<WebString>& StringConstraint::ideal() const
 {
     return m_ideal;
 }
 
 WebString StringConstraint::toString() const
 {
     StringBuilder builder;
     builder.append('{');
     if (!m_ideal.isEmpty()) {
-        builder.append("ideal: [");
+        builder.appendLiteral("ideal: [");
         bool first = true;
         for (const auto& iter : m_ideal) {
             if (!first)
-                builder.append(", ");
+                builder.appendLiteral(", ");
             builder.append('"');
             builder.append(iter);
             builder.append('"');
             first = false;
         }
         builder.append(']');
     }
     if (!m_exact.isEmpty()) {
         if (builder.length() > 1)
-            builder.append(", ");
-        builder.append("exact: [");
+            builder.appendLiteral(", ");
+        builder.appendLiteral("exact: [");
         bool first = true;
         for (const auto& iter : m_exact) {
             if (!first)
-                builder.append(", ");
+                builder.appendLiteral(", ");
             builder.append('"');
             builder.append(iter);
             builder.append('"');
         }
         builder.append(']');
     }
     builder.append('}');
     return builder.toString();
 }
 
@@ skipping 146 matching lines @@
     return hasMandatoryOutsideSet(std::vector<std::string>(), dummyString);
 }
 
 WebString WebMediaTrackConstraintSet::toString() const
 {
     StringBuilder builder;
     bool first = true;
     for (const auto& constraint : allConstraints()) {
         if (!constraint->isEmpty()) {
             if (!first)
-                builder.append(", ");
+                builder.appendLiteral(", ");
             builder.append(constraint->name());
-            builder.append(": ");
+            builder.appendLiteral(": ");
             builder.append(constraint->toString());
             first = false;
         }
     }
     return builder.toString();
 }
 
 // WebMediaConstraints
 
 void WebMediaConstraints::assign(const WebMediaConstraints& other)
@@ skipping 36 matching lines @@
 }
 
 const WebString WebMediaConstraints::toString() const
 {
     if (isNull())
         return WebString("");
     return m_private->toString();
 }
 
 } // namespace blink