am 07837862: Merge "Fine tune the high memory threshold and usage delta for v8 GC." into honeycomb

        // Allow us to use up to our memory class value before V8's GC kicks in.

        // These values have been determined by experimentation.

        mLowMemoryUsageThresholdMb = manager.getLargeMemoryClass();

        // If things get crazy, allow V8 to use up to 3 times our memory class, or a third of the

        // device's total available memory, whichever is smaller.  This value must be no less

        // than the low memory threshold.

        // At that point V8 will start attempting more aggressive garbage collection.

        mHighMemoryUsageThresholdMb = Math.max(Math.min(mLowMemoryUsageThresholdMb * 3,

                (int) (memInfo.availMem / 3) >> 20), mLowMemoryUsageThresholdMb);

        mHighMemoryUsageThresholdMb = (int) (mLowMemoryUsageThresholdMb * 1.5);

        // Avoid constant V8 GC when memory usage equals to working set estimate.

        mHighUsageDeltaMb = 1;

        mHighUsageDeltaMb = mLowMemoryUsageThresholdMb / 32;

        // Send a message to initialize the WebViewCore.

        Message init = sWebCoreHandler.obtainMessage(