Remove unused Internals::setMemoryCacheCapacities()

According to codesearch, there are no usage of setMemoryCacheCapacities from
JavaScript in the tests.

BUG=603462

Review-Url: https://codereview.chromium.org/2416803002
Cr-Commit-Position: refs/heads/master@{#427271}

third_party/WebKit/Source/core/testing/Internals.cpp

@@ -1847,18 +1847,6 @@ String Internals::dumpRefCountedInstanceCounts() const {
   return WTF::dumpRefCountedInstanceCounts();
 }
 
-Vector<unsigned long> Internals::setMemoryCacheCapacities(
-    unsigned long minDeadBytes,
-    unsigned long maxDeadBytes,
-    unsigned long totalBytes) {
-  Vector<unsigned long> result;
-  result.append(memoryCache()->minDeadCapacity());
-  result.append(memoryCache()->maxDeadCapacity());
-  result.append(memoryCache()->capacity());
-  memoryCache()->setCapacities(minDeadBytes, maxDeadBytes, totalBytes);
-  return result;
-}
-
 bool Internals::hasGrammarMarker(Document* document, int from, int length) {
   ASSERT(document);
   if (!document->frame())

third_party/WebKit/Source/core/testing/Internals.h

@@ -333,9 +333,6 @@ class Internals final : public GarbageCollectedFinalized<Internals>,
   String dumpRefCountedInstanceCounts() const;
   LocalDOMWindow* openDummyInspectorFrontend(const String& url);
   void closeDummyInspectorFrontend();
-  Vector<unsigned long> setMemoryCacheCapacities(unsigned long minDeadBytes,
-                                                 unsigned long maxDeadBytes,
-                                                 unsigned long totalBytes);
 
   String counterValue(Element*);
 

third_party/WebKit/Source/core/testing/Internals.idl

@@ -204,7 +204,6 @@
     unsigned long numberOfLiveNodes();
     unsigned long numberOfLiveDocuments();
     DOMString dumpRefCountedInstanceCounts();
-    sequence<unsigned long> setMemoryCacheCapacities(unsigned long minDeadBytes, unsigned long maxDeadBytes, unsigned long totalBytes);
 
     DOMString counterValue(Element element);
     [RaisesException] long pageNumber(Element element, optional float pageWidth = 800, optional float pageHeight = 600);