Memory is not released after leaving page for SD 1.5 and SD Turbo

[ibelem]

The memory will keep increasing in following scenario:

Steps:

1. Visit https://microsoft.github.io/webnn-developer-preview/demos/stable-diffusion-1.5/
2. Click "Load Models" button -> Wait for loading and compiling models completed

Actual Result 1:

The memory of GPU process and Tab (blink process) will increase

Steps:

3. In the same tab, visit https://microsoft.github.io/webnn-developer-preview/demos/sd-turbo/

Actual Result 2:

The memory of GPU process and Tab (blink process) from stable-diffusion-1.5 are not released

Steps:

4. Click "Load Models" button -> Wait for loading and compiling models completed

Actual Result 3:

1. The memory of GPU process and Tab (blink process) keep increasing for both SD Turbo and SD 1.5
2. The probability of the "Context lost" error occurring is greatly increased, page blink and black screen happens

[ibelem]

More backgrounds:

• https://developer.chrome.com/blog/back-forward-cache
• https://issues.chromium.org/issues/376720478
• https://chromium-review.googlesource.com/c/chromium/src/+/5689303
• Idea for Discussion: Device Memory Management Primitives webmachinelearning/webnn#780
• https://learn.microsoft.com/en-us/windows/win32/api/d3d12/nf-d3d12-id3d12device-makeresident