Make tile size a function of the device scale factor.

content/public/common/content_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 #include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
@@ skipping 53 matching lines @@
 const char kBrowserCrashTest[]              = "crash-test";
 
 // Path to the exe to run for the renderer and plugin subprocesses.
 const char kBrowserSubprocessPath[]         = "browser-subprocess-path";
 
 // Causes the implementations of guests (inner WebContents) to use
 // out-of-process iframes.
 const char kUseCrossProcessFramesForGuests[]   =
     "use-cross-process-frames-for-guests";
 
-// Sets the tile size used by composited layers.
-const char kDefaultTileWidth[]              = "default-tile-width";
-const char kDefaultTileHeight[]             = "default-tile-height";
-
 // Disable antialiasing on 2d canvas.
 const char kDisable2dCanvasAntialiasing[]   = "disable-canvas-aa";
 
 // Disables Canvas2D rendering into a scanout buffer for overlay support.
 const char kDisable2dCanvasImageChromium[] = "disable-2d-canvas-image-chromium";
 
 // Disables client-visible 3D APIs, in particular WebGL and Pepper 3D.
 // This is controlled by policy and is kept separate from the other
 // enable/disable switches to avoid accidentally regressing the policy
 // support for controlling access to these APIs.
@@ skipping 531 matching lines @@
 const char kLoggingLevel[]                  = "log-level";
 
 // Enables saving net log events to a file and sets the file name to use.
 const char kLogNetLog[]                     = "log-net-log";
 
 // Resizes of the main frame are caused by changing between landscape and
 // portrait mode (i.e. Android) so the page should be rescaled to fit.
 const char kMainFrameResizesAreOrientationChanges[] =
     "main-frame-resizes-are-orientation-changes";
 
-// Sets the width and height above which a composited layer will get tiled.
-const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
-const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
-
 // Sample memory usage with high frequency and store the results to the
 // Renderer.Memory histogram. Used in memory tests.
 const char kMemoryMetrics[]                 = "memory-metrics";
 
 // Sets options for MHTML generator to skip no-store resources:
 //   "skip-nostore-main" - fails to save a page if main frame is 'no-store'
 //   "skip-nostore-all" - also skips no-store subresources.
 const char kMHTMLGeneratorOption[]          = "mhtml-generator-option";
 const char kMHTMLSkipNostoreMain[]          = "skip-nostore-main";
 const char kMHTMLSkipNostoreAll[]           = "skip-nostore-all";
@@ skipping 407 matching lines @@
 // the given directory. Used primarily to gather samples for IPC fuzzing.
 const char kIpcDumpDirectory[] = "ipc-dump-directory";
 
 // Specifies the testcase used by the IPC fuzzer.
 const char kIpcFuzzerTestcase[] = "ipc-fuzzer-testcase";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches