Shrink OffscreenCanvas commit pixel tests' test rect dimension

content/test/gpu/gpu_tests/pixel_test_pages.py

Index: content/test/gpu/gpu_tests/pixel_test_pages.py
diff --git a/content/test/gpu/gpu_tests/pixel_test_pages.py b/content/test/gpu/gpu_tests/pixel_test_pages.py
index acc4009648bf4e0846056f5e5cacb49b4b696177..5d857842d359cb49ff9740d979bdb2cbb70ed39b 100644
--- a/content/test/gpu/gpu_tests/pixel_test_pages.py
+++ b/content/test/gpu/gpu_tests/pixel_test_pages.py
@@ -319,71 +319,71 @@ def ExperimentalCanvasFeaturesPages(base_name):
     PixelTestPage(
       'pixel_offscreenCanvas_webgl_commit_main.html',
       base_name + '_OffscreenCanvasWebGLDefault',
-      test_rect=[0, 0, 400, 200],
-      revision=3,
+      test_rect=[0, 0, 360, 200],
+      revision=4,
       browser_args=browser_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_webgl_commit_worker.html',
       base_name + '_OffscreenCanvasWebGLDefaultWorker',
-      test_rect=[0, 0, 400, 200],
-      revision=3,
+      test_rect=[0, 0, 360, 200],
+      revision=4,
       browser_args=browser_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_webgl_commit_main.html',
       base_name + '_OffscreenCanvasWebGLSoftwareCompositing',
-      test_rect=[0, 0, 400, 200],
-      revision=4,
+      test_rect=[0, 0, 360, 200],
+      revision=5,
       browser_args=browser_args + ['--disable-gpu-compositing']),
 
     PixelTestPage(
       'pixel_offscreenCanvas_webgl_commit_worker.html',
       base_name + '_OffscreenCanvasWebGLSoftwareCompositingWorker',
-      test_rect=[0, 0, 400, 200],
-      revision=4,
+      test_rect=[0, 0, 360, 200],
+      revision=5,
       browser_args=browser_args + ['--disable-gpu-compositing']),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_main.html',
       base_name + '_OffscreenCanvasAccelerated2D',
-      test_rect=[0, 0, 400, 200],
-      revision=5,
+      test_rect=[0, 0, 360, 200],
+      revision=6,
       browser_args=browser_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_worker.html',
       base_name + '_OffscreenCanvasAccelerated2DWorker',
-      test_rect=[0, 0, 400, 200],
-      revision=5,
+      test_rect=[0, 0, 360, 200],
+      revision=6,
       browser_args=browser_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_main.html',
       base_name + '_OffscreenCanvasUnaccelerated2D',
-      test_rect=[0, 0, 400, 200],
-      revision=4,
+      test_rect=[0, 0, 360, 200],
+      revision=5,
       browser_args=browser_args + unaccelerated_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_worker.html',
       base_name + '_OffscreenCanvasUnaccelerated2DWorker',
-      test_rect=[0, 0, 400, 200],
-      revision=4,
+      test_rect=[0, 0, 360, 200],
+      revision=5,
       browser_args=browser_args + unaccelerated_args),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_main.html',
       base_name + '_OffscreenCanvasUnaccelerated2DGPUCompositing',
-      test_rect=[0, 0, 400, 200],
-      revision=6,
+      test_rect=[0, 0, 360, 200],
+      revision=7,
       browser_args=browser_args + ['--disable-accelerated-2d-canvas']),
 
     PixelTestPage(
       'pixel_offscreenCanvas_2d_commit_worker.html',
       base_name + '_OffscreenCanvasUnaccelerated2DGPUCompositingWorker',
-      test_rect=[0, 0, 400, 200],
-      revision=6,
+      test_rect=[0, 0, 360, 200],
+      revision=7,
       browser_args=browser_args + ['--disable-accelerated-2d-canvas']),
 
     PixelTestPage(