Add explicit argument names to improve readability

Add named arguments to "bool" arguments with default values
for readability, as identified by the following command:

$ git ls-files | grep -E '*\.(h)$' | xargs egrep --color \
  "bool = (false|true)"

Also update the unnamed double argument in the transform
include file, IdentityTransformOperation.h

Bug: 781101
Change-Id: I7cd541b1329063805c60b3ee86247d494f8793b4
Reviewed-on: https://chromium-review.googlesource.com/759272Reviewed-by: Noel Gordon <noel@chromium.org>
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Reviewed-by: Chris Watkins <watk@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515457}

third_party/WebKit/Source/core/html/ImageData.h

@@ -106,7 +106,7 @@ class CORE_EXPORT ImageData final : public ScriptWrappable,
                                   DOMArrayBufferView*,
                                   const ImageDataColorSettings* = nullptr);
 
-  ImageData* CropRect(const IntRect&, bool = false);
+  ImageData* CropRect(const IntRect&, bool flip_y = false);
 
   ImageDataStorageFormat GetImageDataStorageFormat();
   static CanvasColorSpace GetCanvasColorSpace(const String&);

third_party/WebKit/Source/core/layout/LayoutBlock.h

@@ -427,7 +427,8 @@ class CORE_EXPORT LayoutBlock : public LayoutBox {
   virtual void SimplifiedNormalFlowLayout();
 
  public:
-  virtual void ComputeOverflow(LayoutUnit old_client_after_edge, bool = false);
+  virtual void ComputeOverflow(LayoutUnit old_client_after_edge,
+                               bool recompute_floats = false);
 
  protected:
   virtual void AddOverflowFromChildren();

third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.h

@@ -46,9 +46,10 @@ class SVGInlineTextBox final : public InlineTextBox {
              const LayoutPoint&,
              LayoutUnit line_top,
              LayoutUnit line_bottom) const override;
-  LayoutRect LocalSelectionRect(int start_position,
-                                int end_position,
-                                bool = true) const override;
+  LayoutRect LocalSelectionRect(
+      int start_position,
+      int end_position,
+      bool consider_current_selection = true) const override;
 
   bool MapStartEndPositionsIntoFragmentCoordinates(const SVGTextFragment&,
                                                    int& start_position,

third_party/WebKit/Source/platform/fonts/FontCache.h

@@ -228,9 +228,10 @@ class PLATFORM_EXPORT FontCache {
                                   const char* preferred_locale,
                                   PlatformFallbackFont*);
 #endif
-  scoped_refptr<SimpleFontData> FontDataFromFontPlatformData(const FontPlatformData*,
-                                                      ShouldRetain = kRetain,
-                                                      bool = false);
+  scoped_refptr<SimpleFontData> FontDataFromFontPlatformData(
+      const FontPlatformData*,
+      ShouldRetain = kRetain,
+      bool subpixel_ascent_descent = false);
 
   void InvalidateShapeCache();
 

third_party/WebKit/Source/platform/fonts/FontDataCache.h

@@ -75,8 +75,8 @@ class FontDataCache {
   FontDataCache() {}
 
   scoped_refptr<SimpleFontData> Get(const FontPlatformData*,
-                             ShouldRetain = kRetain,
-                             bool = false);
+                                    ShouldRetain = kRetain,
+                                    bool subpixel_ascent_descent = false);
   bool Contains(const FontPlatformData*) const;
   void Release(const SimpleFontData*);
 

third_party/WebKit/Source/platform/transforms/IdentityTransformOperation.h

@@ -49,9 +49,10 @@ class PLATFORM_EXPORT IdentityTransformOperation final
 
   void Apply(TransformationMatrix&, const FloatSize&) const override {}
 
-  scoped_refptr<TransformOperation> Blend(const TransformOperation*,
-                                          double,
-                                          bool = false) override {
+  scoped_refptr<TransformOperation> Blend(
+      const TransformOperation*,
+      double progress,
+      bool blend_to_identity = false) override {
     return this;
   }