[Impeller] Updated benchmarks (flutter#50694)

Looks like we changed devices sometime in august.  This mostly switches comparisons from using Samsung galaxy 10 to pixel 7 pro.

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

impeller/docs/benchmarks.md

@@ -4,12 +4,13 @@ Here are some noteworthy benchmarks related to Impeller performance:
 
 - **New Gallery** - Runs through the Flutter Gallery with a driver test.
   - Pixel 7 Pro
+    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X3f83005df6350b72d23479764c787b2d)
+    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X080f13e1d6607d5ad3f4fe5c67e61538)
     - Skia vs Vulkan Impeller - frame raster time stats: [dashboard](https://flutter-flutter-perf.skia.org/e/?queries=device_type%3DPixel_7_Pro%26sub_result%3D90th_percentile_frame_rasterizer_time_millis%26sub_result%3D99th_percentile_frame_rasterizer_time_millis%26sub_result%3Daverage_frame_rasterizer_time_millis%26sub_result%3Dworst_frame_rasterizer_time_millis%26test%3Dnew_gallery__transition_perf%26test%3Dnew_gallery_impeller__transition_perf)
+    - Vulkan vs OpenGLES - average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?queries=device_type%3DPixel_7_Pro%26sub_result%3Daverage_frame_rasterizer_time_millis%26test%3Dnew_gallery_impeller__transition_perf%26test%3Dnew_gallery_opengles_impeller__transition_perf)
   - Samsung S10
-    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X8f96868d3a9eeb120bec1f458c577c30)
-    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=Xeb13bfef4ef2947f899646422bbad8c6)
-    - Vulkan vs OpenGLES - average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=Xdfca283b38a86fc09129141792cf5a4b)
-    - Skia vs Vulkan Impeller - 90th percentile frame rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X2cacf305c9d4b1b5fc43f81368803a9b)
+    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X777844777514c7b34e736eadbc5dd002)
+    - Skia vs Vulkan Impeller - 90th percentile frame rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?begin=1707934850&end=1708021250&queries=device_type%3DSM-A025V%26sub_result%3D90th_percentile_frame_rasterizer_time_millis%26test%3Dnew_gallery__transition_perf%26test%3Dnew_gallery_impeller__transition_perf)
   - Moto G4 (OpenGLES): [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=Xaeae5aa39c9028be43e8a9ad40540bd8)
   - iPhone 11
     - Metal: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X9d52e54d0ac32151cc10feca61ea34cc)
@@ -18,18 +19,22 @@ Here are some noteworthy benchmarks related to Impeller performance:
 - **Animated Blur Backdrop Filter** - A driver test that scrolls to a screen and
   animates a Blur Backdrop filter to get progressively blurrier.  This covers a
   gap in the "New Gallery" tests we've seen in places like Wonderous.
-  - Samsung S10
-    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X71aab43432178775be19fe133cdb5528)
-    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X8024e2cd402a6afcefdb18aaabc9533a)
-    - Vulkan vs OpenGLES - Average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=Xb1c6d1bb2e43c633bc3e1aa896cf5b08)
+  - Pixel 7 Pro
+    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X6d3dd43039c95ec80a8b3914cf386f48)
+    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X48625544c02c75d050c4440405025d80)
+    - Vulkan vs OpenGLES - Average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?queries=device_type%3DPixel_7_Pro%26sub_result%3Daverage_frame_rasterizer_time_millis%26test%3Danimated_blur_backdrop_filter_perf__timeline_summary%26test%3Danimated_blur_backdrop_filter_perf_opengles__timeline_summary)
   - Moto G4 (OpenGLES): [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X78023772ea9e94c81f37456a7fa7bf46)
   - iPhone 11 (Metal): [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X2f7504aba3db6aeff08cc896081ace55)
 
 - **Animated Advanced Blend** - A driver test like the Animated Blur test, but
   is displaying a handful of advanced blurs since it represents a specific case
   exercised in Wonderous.
-  - Samsung S10
-    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X4ad61cb8047db080bca0808550f0662f)
-    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X0095f870c922720957aa4f6db5cefe76)
-    - Vulkan vs OpenGLES - Average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X7ee143e5ef1da2f06950c5d281258377)
+  - Pixel 7 Pro
+    - Vulkan: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=Xe742e40d9f7510cf6c8ddbf9eee9d51b)
+    - OpenGLES: [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X78baa100c6cadec3171d42063cc857bf)
+    - Vulkan vs OpenGLES - Average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?queries=device_type%3DPixel_7_Pro%26sub_result%3Daverage_frame_rasterizer_time_millis%26test%3Danimated_advanced_blend_perf__timeline_summary%26test%3Danimated_advanced_blend_perf_opengles__timeline_summary)
   - iPhone 11 (Metal): [dashboard](https://flutter-flutter-perf.skia.org/e/?keys=X65477f5b5026c0d5ee8fee79122427ab)
+
+- **Backdrop Filter Perf** - A driver test that isolates better the performance
+  of blurs.
+  - iPhone 11 (Metal) - Average rasterizer time: [dashboard](https://flutter-flutter-perf.skia.org/e/?queries=sub_result%3Daverage_frame_rasterizer_time_millis%26test%3Dbackdrop_filter_perf_ios__timeline_summary&xbaroffset=38815)