[oilpan] Rename PauseScope to SafePointScope

Source/oilpan-chromium.patch

Index: Source/oilpan-chromium.patch
diff --git a/Source/oilpan-chromium.patch b/Source/oilpan-chromium.patch
index ea6d5e15d3245a0c41ae4befa1e4b42615a7dd64..77bc7d628813e14f56dea0400962e01520a963f3 100644
--- a/Source/oilpan-chromium.patch
+++ b/Source/oilpan-chromium.patch
@@ -675,7 +675,7 @@ index bbc2429..da47e30 100644
 +      CHECK(processing_ == false);
 +      processing_ = true;
 + #endif
-+      WebKit::Platform::markCurrentThreadResumed();
++      WebKit::Platform::leaveSafePoint();
 +    }
 +
 +    // This method is called after processing a task.
@@ -683,7 +683,7 @@ index bbc2429..da47e30 100644
 + #ifndef NDEBUG
 +      processing_ = false;
 + #endif
-+      WebKit::Platform::markCurrentThreadPaused();
++      WebKit::Platform::enterSafePoint();
 +    }
 +
 +   private:
@@ -699,7 +699,7 @@ index bbc2429..da47e30 100644
 +  virtual void Run(MessageLoop* message_loop) OVERRIDE {
 +    intptr_t stackMark;
 +    WebKit::Platform::attachThread(&stackMark);
-+    WebKit::Platform::markCurrentThreadPaused();
++    WebKit::Platform::enterSafePoint();
 +    message_loop->AddTaskObserver(new ThreadManager);
 +    base::Thread::Run(message_loop);
 +  }
@@ -749,7 +749,7 @@ index c615405..670df69 100644
  
  void TestWebKitPlatformSupport::serveAsynchronousMockedRequests() {
    url_loader_factory_.ServeAsynchronousRequests();
-+  WebKit::Platform::markCurrentThreadResumed();
++  WebKit::Platform::leaveSafePoint();
  }
  
  WebKit::WebString TestWebKitPlatformSupport::webKitRootDir() {
@@ -816,11 +816,11 @@ index 03fb552..a5697d7 100644
 +};
 +
 +void WebKitTestListener::OnTestStart(const testing::TestInfo& test_info) {
-+  WebKit::Platform::markCurrentThreadResumed();
++  WebKit::Platform::leaveSafePoint();
 +}
 +
 +void WebKitTestListener::OnTestEnd(const testing::TestInfo& test_info) {
-+  WebKit::Platform::markCurrentThreadPaused();
++  WebKit::Platform::enterSafePoint();
 +}
 +
 +}  // namespace