Switch LevelDBWrapper::GetAll to use the new Mojo sync IPC mechanism.

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index c054ee4758cf4ad3c79bd7720780f29409a573c6..8b558d3f5dd98b119f73655e8a72667547eb13f4 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -52,6 +52,7 @@ namespace content {
 class DeviceLightEventPump;
 class DeviceMotionEventPump;
 class DeviceOrientationEventPump;
+class LocalStorageCachedAreas;
 class PlatformEventObserverBase;
 class QuotaMessageFilter;
 class RendererClipboardDelegate;
@@ -295,6 +296,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
 
   TrialTokenValidator trial_token_validator_;
 
+  scoped_ptr<LocalStorageCachedAreas> local_storage_cached_areas_;
+
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };