Rename Supplement::host() to Supplement::supplementable()

third_party/WebKit/Source/platform/Supplementable.h

Index: third_party/WebKit/Source/platform/Supplementable.h
diff --git a/third_party/WebKit/Source/platform/Supplementable.h b/third_party/WebKit/Source/platform/Supplementable.h
index 6ec435c81fc6819439cea6f3aaec688efd660573..ad7fd69462ed823a352cf70f65ca62d37f2ccb08 100644
--- a/third_party/WebKit/Source/platform/Supplementable.h
+++ b/third_party/WebKit/Source/platform/Supplementable.h
@@ -99,31 +99,33 @@ class Supplement : public GarbageCollectedMixin {
   // All Supplement objects should be instantiated with m_host.
   Supplement() {}
 
-  explicit Supplement(T& host) : m_host(&host) {}
+  explicit Supplement(T& supplementable) : m_supplementable(&supplementable) {}
 
   // Supplementable and its supplements live and die together.
-  // Thus host() should never return null (if the default constructor
+  // Thus supplementable() should never return null (if the default constructor
   // is completely removed).
-  T* host() const { return m_host; }
+  T* supplementable() const { return m_supplementable; }
 
-  static void provideTo(Supplementable<T>& host,
+  static void provideTo(Supplementable<T>& supplementable,
                         const char* key,
                         Supplement<T>* supplement) {
-    host.provideSupplement(key, supplement);
+    supplementable.provideSupplement(key, supplement);
   }
 
-  static Supplement<T>* from(Supplementable<T>& host, const char* key) {
-    return host.requireSupplement(key);
+  static Supplement<T>* from(Supplementable<T>& supplementable,
+                             const char* key) {
+    return supplementable.requireSupplement(key);
   }
 
-  static Supplement<T>* from(Supplementable<T>* host, const char* key) {
-    return host ? host->requireSupplement(key) : 0;
+  static Supplement<T>* from(Supplementable<T>* supplementable,
+                             const char* key) {
+    return supplementable ? supplementable->requireSupplement(key) : 0;
   }
 
-  DEFINE_INLINE_VIRTUAL_TRACE() { visitor->trace(m_host); }
+  DEFINE_INLINE_VIRTUAL_TRACE() { visitor->trace(m_supplementable); }
 
  private:
-  Member<T> m_host;
+  Member<T> m_supplementable;
 };
 
 // Supplementable<T> inherits from GarbageCollectedMixin virtually