[oilpan] Rename PauseScope to SafePointScope

Source/core/platform/chromium/support/Platform.cpp

Index: Source/core/platform/chromium/support/Platform.cpp
diff --git a/Source/core/platform/chromium/support/Platform.cpp b/Source/core/platform/chromium/support/Platform.cpp
index e201a7b5c4dc8db4add3ee46e826f795b5de7835..a714434d5092952db0ec1373660624f3d616eeda 100644
--- a/Source/core/platform/chromium/support/Platform.cpp
+++ b/Source/core/platform/chromium/support/Platform.cpp
@@ -36,24 +36,24 @@ namespace WebKit {
 
 static Platform* s_platform = 0;
 
-void Platform::markCurrentThreadPaused()
+void Platform::enterSafePoint()
 {
-    // FIXME(oilpan): Calls to mark paused and mark resumed really
+    // FIXME(oilpan): Calls to enterSafePoint and leaveSafePoint really
     // should be balanced. At this point they are not for at least the
     // webkit_unit_tests.
     WebCore::ThreadState* state = WebCore::ThreadState::Current();
-    if (!state->isPaused())
-        state->paused(WebCore::ThreadState::NoHeapPointersOnStack);
+    if (!state->isInSafePoint())
+        state->enterSafePoint(WebCore::ThreadState::NoHeapPointersOnStack);
 }
 
-void Platform::markCurrentThreadResumed()
+void Platform::leaveSafePoint()
 {
-    // FIXME(oilpan): Calls to mark paused and mark resumed really
+    // FIXME(oilpan): Calls to enterSafePoint and leaveSafePoint really
     // should be balanced. At this point they are not for at least the
     // webkit_unit_tests.
     WebCore::ThreadState* state = WebCore::ThreadState::Current();
-    if (state->isPaused())
-        state->resumed();
+    if (state->isInSafePoint())
+        state->leaveSafePoint();
 }
 
 void Platform::attachThread(intptr_t* startOfStack)