Adding blink gc memory dump infrastructure for thread specific dumps.

Source/platform/exported/Platform.cpp

Index: Source/platform/exported/Platform.cpp
diff --git a/Source/platform/exported/Platform.cpp b/Source/platform/exported/Platform.cpp
index 5f22defe5cb634e309ff135b4feb0f7721094521..d5f1e2eae9f75c35bb7e0250fa57bfeada4ed7c6 100644
--- a/Source/platform/exported/Platform.cpp
+++ b/Source/platform/exported/Platform.cpp
@@ -51,7 +51,6 @@ void Platform::initialize(Platform* platform)
     // TODO(ssid): remove this check after fixing crbug.com/486782.
     if (s_platform && s_platform->m_mainThread) {
         s_platform->registerMemoryDumpProvider(PartitionAllocMemoryDumpProvider::instance());
-        s_platform->registerMemoryDumpProvider(BlinkGCMemoryDumpProvider::instance());
     }
 }
 
@@ -59,7 +58,6 @@ void Platform::shutdown()
 {
     if (s_platform->m_mainThread) {
         s_platform->unregisterMemoryDumpProvider(PartitionAllocMemoryDumpProvider::instance());
-        s_platform->unregisterMemoryDumpProvider(BlinkGCMemoryDumpProvider::instance());
     }
 
     if (s_platform)