Reserve capacity for static strings HashMap.

third_party/WebKit/Source/modules/InitModules.cpp

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "InitModules.h"
 
 #include "bindings/modules/v8/ModuleBindingsInitializer.h"
 #include "core/EventTypeNames.h"
 #include "core/dom/Document.h"
@@ skipping 10 matching lines @@
 #include "modules/webgl/WebGL2RenderingContext.h"
 #include "modules/webgl/WebGLRenderingContext.h"
 
 namespace blink {
 
 void ModulesInitializer::init()
 {
     ASSERT(!isInitialized());
 
     // Strings must be initialized before calling CoreInitializer::init().
+    const unsigned modulesStaticStringsCount = EventNames::EventModulesNamesCount
+        + EventTargetNames::EventTargetModulesNamesCount
+        + IndexedDBNames::IndexedDBNamesCount;
+    StringImpl::reserveStaticStringsCapacityForSize(modulesStaticStringsCount);
+
     EventNames::initModules();
     EventTargetNames::initModules();
     Document::registerEventFactory(EventModulesFactory::create());
     ModuleBindingsInitializer::init();
     IndexedDBNames::init();
     AXObjectCache::init(AXObjectCacheImpl::create);
     DraggedIsolatedFileSystem::init(DraggedIsolatedFileSystemImpl::prepareForDataObject);
 
     CoreInitializer::init();
 
     if (RuntimeEnabledFeatures::compositorWorkerEnabled())
         CompositorWorkerManager::initialize();
 
     // Canvas context types must be registered with the HTMLCanvasElement.
     HTMLCanvasElement::registerRenderingContextFactory(adoptPtr(new CanvasRenderingContext2D::Factory()));
     HTMLCanvasElement::registerRenderingContextFactory(adoptPtr(new WebGLRenderingContext::Factory()));
     HTMLCanvasElement::registerRenderingContextFactory(adoptPtr(new WebGL2RenderingContext::Factory()));
 
     ASSERT(isInitialized());
 }
 
 void ModulesInitializer::terminateThreads()
 {
     if (RuntimeEnabledFeatures::compositorWorkerEnabled())
         CompositorWorkerManager::shutdown();
     DatabaseManager::terminateDatabaseThread();
 }
 
 } // namespace blink