Rename WebCore namespace to blink in Platform

Source/platform/exported/WebSpeechSynthesisVoice.cpp

Index: Source/platform/exported/WebSpeechSynthesisVoice.cpp
diff --git a/Source/platform/exported/WebSpeechSynthesisVoice.cpp b/Source/platform/exported/WebSpeechSynthesisVoice.cpp
index ccad2b01f5bf67384903b1c8cd60c499023b6b81..445c55eef1efa97da5632e6a1b15be431fcf5cd6 100644
--- a/Source/platform/exported/WebSpeechSynthesisVoice.cpp
+++ b/Source/platform/exported/WebSpeechSynthesisVoice.cpp
@@ -33,7 +33,7 @@
 namespace blink {
 
 WebSpeechSynthesisVoice::WebSpeechSynthesisVoice()
-    : m_private(WebCore::PlatformSpeechSynthesisVoice::create())
+    : m_private(blink::PlatformSpeechSynthesisVoice::create())
 {
 }
 
@@ -72,7 +72,7 @@ void WebSpeechSynthesisVoice::setIsDefault(bool isDefault)
     m_private->setIsDefault(isDefault);
 }
 
-WebSpeechSynthesisVoice::operator WebCore::PlatformSpeechSynthesisVoice*() const
+WebSpeechSynthesisVoice::operator blink::PlatformSpeechSynthesisVoice*() const
 {
     return m_private.get();
 }